PM-16170 remove methods using deprecated send endpoints

[prograhamming]

🎟️ Tracking

https://bitwarden.atlassian.net/jira/software/c/projects/BW/boards/92?selectedIssue=PM-16170

📔 Objective

Within server there’s a deprecated endpoint for uploading files to a Bitwarden Send (SendsController). This endpoint can be removed. In addition any backwards compatible logic on the client-side (send-api.service) can also be removed.

📸 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 – 676b12c9-286b-4fa6-98c2-4eb6fab0cef6

No New Or Fixed Issues Found

[djsmith85]

Nice one! Changes are looking good!