[PM-29507] Remove feature flag from server constants

[JaredScar]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-29507

📔 Objective

Remove feature flag from server codebase since this flag is only client sided

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Checkmarx One – Scan Summary & Details – 9ebb617f-92f3-4a77-93e2-abf2dba5fcc9

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.26%. Comparing base (c1ee27f) to head (34ee6aa).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6983   +/-   ##
=======================================
  Coverage   56.26%   56.26%           
=======================================
  Files        1983     1983           
  Lines       87651    87651           
  Branches     7815     7815           
=======================================
+ Hits        49317    49318    +1     
+ Misses      36504    36503    -1     
  Partials     1830     1830           

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