Remove rulemakings feature flag references

[pkfec]

Summary (required)

Before, Rulemakings was behind a feature flag to expose the endpoint in lower environments. Now that Rulemakings went live on March 10, we should consider removing the feature flag from the openFEC and fec-cms codebase and also removing feature flag environment variables from the cloud.gov space across all three environments.

This PR removes the following three rulemaking feature flags that are currently referenced in the code:

1. FEC_FEATURE_RULEMAKINGS
2. FEC_FEATURE_RULEMAKINGS_SINGLE
3. FEC_FEATURE_RULEMAKINGS_COMMENTING

• Resolves #Remove rulemakings feature flag from codebase openFEC#6526

Required reviewers

1-2 developers

How to test

• unset rulemakings feature flags if already set in local workspace:
  - run: unset FEC_FEATURE_RULEMAKINGS
  - run: unset FEC_FEATURE_RULEMAKINGS_SINGLE
  - run: unset FEC_FEATURE_RULEMAKINGS_COMMENTING
• run: git checkout feature/6526-remove-rulemakings-feature-flag
• run: pyenv activate <cms virtual env>
• run: pytest (on fec-cms dir )
• run: cd fec
• run: ./manage.py runserve
• test rulemaking landing page, datatables, single rulemakings pages are loading OK (without rulemakings feature flags)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.83%. Comparing base (0b0d40e) to head (10131a3).
⚠️ Report is 10 commits behind head on release/public-20260407.

Additional details and impacted files

@@                     Coverage Diff                     @@
##           release/public-20260407    #7064      +/-   ##
===========================================================
- Coverage                    78.91%   78.83%   -0.09%     
===========================================================
  Files                          255      255              
  Lines                         6565     6557       -8     
===========================================================
- Hits                          5181     5169      -12     
- Misses                        1384     1388       +4     

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[rfultz]

Looks good! (Any reason to keep the parens?)

[rfultz]

Do we still need the parens?

[pkfec]

@rfultz Good catch. I removed extra parnes from the if block. Thanks!

[rfultz]

Looks good to me!