Issue:
refactor(pm_list): Update required fields for a payment method

## 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 -->
Refactored  required fields for a payment method and removed fields not collected by sdk such as description, browser info.


### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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2. `crates/router/src/configs`
3. `loadtest/config`
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## Motivation and Context
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## How did you test it?
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## 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 submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Resolution:
<think>
PR Context:
- Title: revert: refactor(pm_list): Update required fields for a payment method
- Merged: 2023-07-17T08:09:19Z
- Files changed: 3 files
- Commits: 1 commits

Implementation approach:
Reverts juspay/hyperswitch#1720 
Reason - Solution seemed unnecessary after discussion. 
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** revert: refactor(pm_list): Update required fields for a payment method (#1724)
Co-authored-by: Tinu 
Files to modify:


**crates/api_models/src/enums.rs**
  Modify existing code

**crates/router/src/configs/defaults.rs**
  Modify existing code