Issue:
fix(connector) : Added signifyd to routableconnectors for frm

## Type of Change
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- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Currently, Signifyd is mentioned in connectors enum, but not routable connectors enum...this PR is to add that 

### 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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## Motivation and Context
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Currently, Signifyd is mentioned in connectors enum, but not routable connectors enum...this PR is to add that 

## How did you test it?
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## Checklist
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- [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: fix(connector): Added signifyd to routableconnectors for frm
- Merged: 2023-05-18T12:59:09Z
- Files changed: 1 files
- Commits: 1 commits

Implementation approach:
This PR reverts #1182.
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** revert: fix(connector): Added signifyd to routableconnectors for frm (#1203)
Files to modify:


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