Issue:
fix(list): remove enabled payment methods from list customer payment …

…method

## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [x] Enhancement
- [ ] Refactoring
- [ ] Dependency updates

## Description
Removes the enabled payment method field from list_customer_payment_method. This is an extension to the PR raised by @Narayanbhat166 
<!-- Describe your changes in detail -->


### Additional Changes

- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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## Motivation and Context
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## How did you test it?
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## Checklist
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- [ ] I formatted the code `cargo +nightly fmt --all`
- [ ] I addressed lints thrown by `cargo clippy`
- [ ] 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: feat(list): global filter mapping for payment methods via card network
- Merged: 2023-03-01T11:31:41Z
- Files changed: 4 files
- Commits: 4 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [x] Enhancement
- [ ] Refactoring
- [ ] Dependency updates

## Description
In an earlier PR #689, we added a global filter mapping for `<connector>.<payment_method_type>`, but according to the new requirements, the various card networks will also have the similar filters. This PR addes support for `<connector>.<card_network>` in the configuration. @bernard-eugine is compiling the list for th
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** feat(list): global filter mapping for payment methods via card network (#694)
Files to modify:


**crates/router/src/configs/settings.rs**
  Remove:
    - struct: pub::PaymentMethodFilters
  Add:
    - struct: pub::PaymentMethodFilters
    - enum: pub::PaymentMethodFilterKey

**crates/router/src/core/payment_methods/cards.rs**
  Modify existing code