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 – c05e5053-1e9b-4632-9e2c-0394e83f86fb

Great job, no security vulnerabilities found in this Pull Request

[djsmith85]

Nice one! Changes are looking good!

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 34.28%. Comparing base (a54508a) to head (77be85b).
Report is 21 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...common/src/tools/send/services/send-api.service.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12751      +/-   ##
==========================================
- Coverage   34.28%   34.28%   -0.01%     
==========================================
  Files        2933     2933              
  Lines       90081    90066      -15     
  Branches    16916    16914       -2     
==========================================
- Hits        30886    30879       -7     
+ Misses      56737    56729       -8     
  Partials     2458     2458              

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