[PM-14613] Remove account deprovisioning feature flag

[eliykat]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-14613

📔 Objective

Remove the account deprovisioning feature flag.

Note that the definition is being retained to be served to old clients, however all old conditional logic can be cleaned up now.

Client PR which must be merged first: bitwarden/clients#14353

📸 Screenshots

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – ca3bba88-fe2d-4d02-b086-38cd6c7a8af3

New Issues (3)

Checkmarx found the following issues in this Pull Request

Severity	Issue	Source File / Package	Checkmarx Insight
	CSRF	/src/Billing/Controllers/PayPalController.cs: 70	details Method PostIpn at line 70 of /src/Billing/Controllers/PayPalController.cs gets a parameter from a user request from Body. This parameter value fl... ID: 00txYX7J7xrof%2FuwKmvfZ50DJpE%3D Attack Vector
	CSRF	/src/Api/AdminConsole/Controllers/GroupsController.cs: 164	details Method Put at line 164 of /src/Api/AdminConsole/Controllers/GroupsController.cs gets a parameter from a user request from model. This parameter v... ID: yt2PajNvte2IY7Xe%2FRtOPf8qKlo%3D Attack Vector
	Missing_CSP_Header	/src/Core/MailTemplates/Handlebars/Billing/TrialInitiationVerifyEmail.html.hbs: 5	details A Content Security Policy is not explicitly defined within the web-application. ID: QypzWUzCL2qiFG6v23B59ISeF4g%3D Attack Vector

Fixed Issues (4)

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

Severity	Issue	Source File / Package
	CSRF	/src/Api/Billing/Controllers/AccountsController.cs: 144
	CSRF	/src/Api/AdminConsole/Public/Controllers/MembersController.cs: 95
	CSRF	/src/Api/AdminConsole/Controllers/GroupsController.cs: 135
	CSRF	/src/Api/Vault/Controllers/SyncController.cs: 76

[codecov]

Codecov Report

Attention: Patch coverage is 56.00000% with 11 lines in your changes missing coverage. Please review.

Project coverage is 47.24%. Comparing base (15b4981) to head (2abc36e).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
...icies/PolicyValidators/SingleOrgPolicyValidator.cs	25.00%	0 Missing and 3 partials ⚠️
src/Admin/Controllers/UsersController.cs	0.00%	2 Missing ⚠️
...lidators/TwoFactorAuthenticationPolicyValidator.cs	33.33%	0 Missing and 2 partials ⚠️
...vices/Implementations/OrganizationDomainService.cs	0.00%	2 Missing ⚠️
...Api/AdminConsole/Controllers/PoliciesController.cs	0.00%	0 Missing and 1 partial ⚠️
src/Api/Vault/Controllers/CiphersController.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5676      +/-   ##
==========================================
- Coverage   50.45%   47.24%   -3.21%     
==========================================
  Files        1641     1641              
  Lines       74716    74566     -150     
  Branches     6737     6721      -16     
==========================================
- Hits        37699    35230    -2469     
- Misses      35486    37870    +2384     
+ Partials     1531     1466      -65     

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[Patrick-Pimentel-Bitwarden]

👍 Auth changes look good.

[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