Issue:
Bug: refactor(permissions): Deprecate permissions from permission info API response



The permissions in the permission info API are not being used and should be removed.

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [x] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
The permissions in the permission info API are not being used and this PR will remove them.

This will help the future PRs which will introduce new kind of Permissions.

### Additional Changes

- [x] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
<!--
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

If you don't have an issue, we'd recommend starting with one first so the PR
can focus on the implementation (unless it is an obvious bug or documentation fix
that will have little conversation).
-->
Closes [#6375](https://github.com/juspay/hyperswitch/issues/6375).

## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
-->
```
curl --location 'https://sandbox.hyperswitch.io/user/permission_info' \
--header 'Authorization: Bearer JWT'
```
This API will no longer have permissions field in the response.
```json
[
    {
        "group": "operations_view",
        "description": "View Payments, Refunds, Payouts, Mandates, Disputes and Customers"
    },
    {
        "group": "operations_manage",
        "description": "Create, modify and delete Payments, Refunds, Payouts, Mandates, Disputes and Customers"
    }
]
```

## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible


Testing:

```
curl --location 'https://sandbox.hyperswitch.io/user/permission_info' \
--header 'Authorization: Bearer JWT'
```
This API will no longer have permissions field in the response.
```json
[
    {
        "group": "operations_view",
        "description": "View Payments, Refunds, Payouts, Mandates, Disputes and Customers"
    },
    {
        "group": "operations_manage",
        "description": "Create, modify and delete Payments, Refunds, Payouts, Mandates, Disputes and Customers"
    }
]
```

Patch:
diff --git a/crates/api_models/src/user_role.rs b/crates/api_models/src/user_role.rs
index ab32651e729..e64639646d1 100644
--- a/crates/api_models/src/user_role.rs
+++ b/crates/api_models/src/user_role.rs
@@ -4,42 +4,6 @@ use masking::Secret;
 
 pub mod role;
 
-#[derive(Debug, serde::Serialize)]
-pub enum Permission {
-    PaymentRead,
-    PaymentWrite,
-    RefundRead,
-    RefundWrite,
-    ApiKeyRead,
-    ApiKeyWrite,
-    MerchantAccountRead,
-    MerchantAccountWrite,
-    MerchantConnectorAccountRead,
-    MerchantConnectorAccountWrite,
-    RoutingRead,
-    RoutingWrite,
-    DisputeRead,
-    DisputeWrite,
-    MandateRead,
-    MandateWrite,
-    CustomerRead,
-    CustomerWrite,
-    Analytics,
-    ThreeDsDecisionManagerWrite,
-    ThreeDsDecisionManagerRead,
-    SurchargeDecisionManagerWrite,
-    SurchargeDecisionManagerRead,
-    UsersRead,
-    UsersWrite,
-    MerchantAccountCreate,
-    WebhookEventRead,
-    PayoutWrite,
-    PayoutRead,
-    WebhookEventWrite,
-    GenerateReport,
-    ReconAdmin,
-}
-
 #[derive(Clone, Debug, serde::Serialize, PartialEq, Eq, Hash)]
 pub enum ParentGroup {
     Operations,
@@ -69,7 +33,6 @@ pub enum AuthorizationInfo {
 pub struct GroupInfo {
     pub group: PermissionGroup,
     pub description: &'static str,
-    pub permissions: Vec<PermissionInfo>,
 }
 
 #[derive(Debug, serde::Serialize, Clone)]
@@ -79,12 +42,6 @@ pub struct ParentInfo {
     pub groups: Vec<PermissionGroup>,
 }
 
-#[derive(Debug, serde::Serialize)]
-pub struct PermissionInfo {
-    pub enum_name: Permission,
-    pub description: &'static str,
-}
-
 #[derive(Debug, serde::Deserialize, serde::Serialize)]
 pub struct UpdateUserRoleRequest {
     pub email: pii::Email,
diff --git a/crates/router/src/services/authorization/info.rs b/crates/router/src/services/authorization/info.rs
index 7cfde3efeea..031e0b56729 100644
--- a/crates/router/src/services/authorization/info.rs
+++ b/crates/router/src/services/authorization/info.rs
@@ -1,9 +1,7 @@
-use api_models::user_role::{GroupInfo, ParentGroup, PermissionInfo};
+use api_models::user_role::{GroupInfo, ParentGroup};
 use common_enums::PermissionGroup;
 use strum::IntoEnumIterator;
 
-use super::{permission_groups::get_permissions_vec, permissions::Permission};
-
 // TODO: To be deprecated
 pub fn get_group_authorization_info() -> Vec<GroupInfo> {
     PermissionGroup::iter()
@@ -11,25 +9,10 @@ pub fn get_group_authorization_info() -> Vec<GroupInfo> {
         .collect()
 }
 
-// TODO: To be deprecated
-pub fn get_permission_info_from_permissions(permissions: &[Permission]) -> Vec<PermissionInfo> {
-    permissions
-        .iter()
-        .map(|&per| PermissionInfo {
-            description: Permission::get_permission_description(&per),
-            enum_name: per.into(),
-        })
-        .collect()
-}
-
 // TODO: To be deprecated
 fn get_group_info_from_permission_group(group: PermissionGroup) -> GroupInfo {
     let description = get_group_description(group);
-    GroupInfo {
-        group,
-        description,
-        permissions: get_permission_info_from_permissions(get_permissions_vec(&group)),
-    }
+    GroupInfo { group, description }
 }
 
 // TODO: To be deprecated
diff --git a/crates/router/src/services/authorization/permissions.rs b/crates/router/src/services/authorization/permissions.rs
index 2f0617557ca..2121ba0f944 100644
--- a/crates/router/src/services/authorization/permissions.rs
+++ b/crates/router/src/services/authorization/permissions.rs
@@ -37,48 +37,3 @@ pub enum Permission {
     GenerateReport,
     ReconAdmin,
 }
-
-impl Permission {
-    pub fn get_permission_description(&self) -> &'static str {
-        match self {
-            Self::PaymentRead => "View all payments",
-            Self::PaymentWrite => "Create payment, download payments data",
-            Self::RefundRead => "View all refunds",
-            Self::RefundWrite => "Create refund, download refunds data",
-            Self::ApiKeyRead => "View API keys",
-            Self::ApiKeyWrite => "Create and update API keys",
-            Self::MerchantAccountRead => "View merchant account details",
-            Self::MerchantAccountWrite => {
-                "Update merchant account details, configure webhooks, manage api keys"
-            }
-            Self::MerchantConnectorAccountRead => "View connectors configured",
-            Self::MerchantConnectorAccountWrite => {
-                "Create, update, verify and delete connector configurations"
-            }
-            Self::RoutingRead => "View routing configuration",
-            Self::RoutingWrite => "Create and activate routing configurations",
-            Self::DisputeRead => "View disputes",
-            Self::DisputeWrite => "Create and update disputes",
-            Self::MandateRead => "View mandates",
-            Self::MandateWrite => "Create and update mandates",
-            Self::CustomerRead => "View customers",
-            Self::CustomerWrite => "Create, update and delete customers",
-            Self::Analytics => "Access to analytics module",
-            Self::ThreeDsDecisionManagerWrite => "Create and update 3DS decision rules",
-            Self::ThreeDsDecisionManagerRead => {
-                "View all 3DS decision rules configured for a merchant"
-            }
-            Self::SurchargeDecisionManagerWrite => "Create and update the surcharge decision rules",
-            Self::SurchargeDecisionManagerRead => "View all the surcharge decision rules",
-            Self::UsersRead => "View all the users for a merchant",
-            Self::UsersWrite => "Invite users, assign and update roles",
-            Self::MerchantAccountCreate => "Create merchant account",
-            Self::WebhookEventRead => "View webhook events",
-            Self::WebhookEventWrite => "Trigger retries for webhook events",
-            Self::PayoutRead => "View all payouts",
-            Self::PayoutWrite => "Create payout, download payout data",
-            Self::GenerateReport => "Generate reports for payments, refunds and disputes",
-            Self::ReconAdmin => "View and manage reconciliation reports",
-        }
-    }
-}
diff --git a/crates/router/src/utils/user_role.rs b/crates/router/src/utils/user_role.rs
index 0ea423989f5..6f0d94d2927 100644
--- a/crates/router/src/utils/user_role.rs
+++ b/crates/router/src/utils/user_role.rs
@@ -1,6 +1,5 @@
 use std::{cmp, collections::HashSet};
 
-use api_models::user_role as user_role_api;
 use common_enums::{EntityType, PermissionGroup};
 use common_utils::id_type;
 use diesel_models::{
@@ -16,49 +15,10 @@ use crate::{
     core::errors::{UserErrors, UserResult},
     db::user_role::{ListUserRolesByOrgIdPayload, ListUserRolesByUserIdPayload},
     routes::SessionState,
-    services::authorization::{self as authz, permissions::Permission, roles},
+    services::authorization::{self as authz, roles},
     types::domain,
 };
 
-impl From<Permission> for user_role_api::Permission {
-    fn from(value: Permission) -> Self {
-        match value {
-            Permission::PaymentRead => Self::PaymentRead,
-            Permission::PaymentWrite => Self::PaymentWrite,
-            Permission::RefundRead => Self::RefundRead,
-            Permission::RefundWrite => Self::RefundWrite,
-            Permission::ApiKeyRead => Self::ApiKeyRead,
-            Permission::ApiKeyWrite => Self::ApiKeyWrite,
-            Permission::MerchantAccountRead => Self::MerchantAccountRead,
-            Permission::MerchantAccountWrite => Self::MerchantAccountWrite,
-            Permission::MerchantConnectorAccountRead => Self::MerchantConnectorAccountRead,
-            Permission::MerchantConnectorAccountWrite => Self::MerchantConnectorAccountWrite,
-            Permission::RoutingRead => Self::RoutingRead,
-            Permission::RoutingWrite => Self::RoutingWrite,
-            Permission::DisputeRead => Self::DisputeRead,
-            Permission::DisputeWrite => Self::DisputeWrite,
-            Permission::MandateRead => Self::MandateRead,
-            Permission::MandateWrite => Self::MandateWrite,
-            Permission::CustomerRead => Self::CustomerRead,
-            Permission::CustomerWrite => Self::CustomerWrite,
-            Permission::Analytics => Self::Analytics,
-            Permission::ThreeDsDecisionManagerWrite => Self::ThreeDsDecisionManagerWrite,
-            Permission::ThreeDsDecisionManagerRead => Self::ThreeDsDecisionManagerRead,
-            Permission::SurchargeDecisionManagerWrite => Self::SurchargeDecisionManagerWrite,
-            Permission::SurchargeDecisionManagerRead => Self::SurchargeDecisionManagerRead,
-            Permission::UsersRead => Self::UsersRead,
-            Permission::UsersWrite => Self::UsersWrite,
-            Permission::MerchantAccountCreate => Self::MerchantAccountCreate,
-            Permission::WebhookEventRead => Self::WebhookEventRead,
-            Permission::WebhookEventWrite => Self::WebhookEventWrite,
-            Permission::PayoutRead => Self::PayoutRead,
-            Permission::PayoutWrite => Self::PayoutWrite,
-            Permission::GenerateReport => Self::GenerateReport,
-            Permission::ReconAdmin => Self::ReconAdmin,
-        }
-    }
-}
-
 pub fn validate_role_groups(groups: &[PermissionGroup]) -> UserResult<()> {
     if groups.is_empty() {
         return Err(report!(UserErrors::InvalidRoleOperation))