[PM-22110] Remove pm-22110-disable-alternate-login-methods feature flag

[trmartin4]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-28329

📔 Objective

Removes pm-22110-disable-alternate-login-methods feature flag from server.

This flag was not ever used on the server and was removed from clients as follows:

Location	Status	Details
Clients	✅ Removed	23ac477 (2025-11-21)

Timeline

Milestone	Version
First client without flag	2026.1.0
Last client with flag	2025.11.1
Server safe to remove	2026.2.0 (last client + 3 months)
Current server version	v2026.3.0

📸 Screenshots

[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 – d13f2060-90d5-419b-bdea-3e8db54647e9

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New Issues (1)

Checkmarx found the following issues in this Pull Request

#	Severity	Issue	Source File / Package	Checkmarx Insight
1		CVE-2026-32933	Nuget-AutoMapper-12.0.1	details Recommended version: 15.1.1 Description: AutoMapper is vulnerable to a Denial-of-Service (DoS) attack. Versions prior to 15.1.1 and 16.x prior to 16.1.1, when mapping deeply nested object ... Attack Vector: NETWORK Attack Complexity: LOW Vulnerable Package

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Fixed Issues (1)

Great job! The following issues were fixed in this Pull Request

Severity	Issue	Source File / Package
	Cxb9102459-6a3a	Nuget-AutoMapper-12.0.1

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.72%. Comparing base (514d8a1) to head (5d16281).
⚠️ Report is 149 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7274   +/-   ##
=======================================
  Coverage   57.72%   57.72%           
=======================================
  Files        2042     2042           
  Lines       89817    89817           
  Branches     7985     7985           
=======================================
  Hits        51844    51844           
  Misses      36115    36115           
  Partials     1858     1858           

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