🎟️ Tracking

https://bitwarden.atlassian.net/browse/AC-2957

📔 Objective

Remove the Feature flag PM-5864-dollar-threshold

📸 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

Greptile Summary

This pull request removes the 'PM5864DollarThreshold' feature flag and its associated logic from the codebase, simplifying subscription management in the Stripe payment service.

• Removed 'PM5864DollarThreshold' from FeatureFlagKeys in /src/Core/Constants.cs
• Eliminated conditional logic based on isPm5864DollarThresholdEnabled in /src/Core/Services/Implementations/StripePaymentService.cs
• Simplified subscription update and invoice handling processes, particularly for annual plans
• Ensure all references to the removed feature flag are eliminated throughout the codebase
• Verify that no existing functionality relies on the removed feature flag