[WatchKit] Remove the WatchKit framework from iOS in .NET.

[rolfbjarne]

Apple removed it from iOS a few years ago.

[vs-mobiletools-engineering-service2]

❌ [PR Build] Tests failed on Build ❌

Tests failed on Build.

• Azure DevOps
• Html Report (VSDrops)

API diff

✅ API Diff from stable

View API diff

• iOS vsdrops gist
• macOS vsdrops gist
• tvOS vsdrops gist
• watchOS vsdrops gist
• macCatiOS vsdrops gist
• macCat vsdrops gist

View dotnet API diff

• dotnet-iOS vsdrops gist
• dotnet-macOS vsdrops gist
• dotnet-tvOS vsdrops gist
• dotnet-MacCatalyst vsdrops gist

View dotnet legacy API diff

• dotnet-legacy-iOS vsdrops gist
• dotnet-legacy-macOS vsdrops gist
• dotnet-legacy-tvOS vsdrops gist
• dotnet-legacy-MacCatalyst vsdrops gist

View dotnet iOS-MacCatalayst API diff

• dotnet-macCatiOS vsdrops gist

API & Generator diff

ℹ️ API Diff (from PR only) (please review changes)
ℹ️ Generator Diff (please review changes)

GitHub pages

Results can be found in the following github pages (it might take some time to publish):

• Test results
• API diff
• API & Generator diff

Test results

5 tests failed, 97 tests passed.

Failed tests

• monotouch-test/Mac [dotnet]/Debug [dotnet]: Failed (Test run failed.
  Tests run: 2539 Passed: 2413 Inconclusive: 10 Failed: 1 Ignored: 125)
• monotouch-test/Mac Catalyst [dotnet]/Debug [dotnet]: Failed (Tests run: 2704 Passed: 2500 Inconclusive: 35 Failed: 1 Ignored: 203)
• xammac tests/Mac Modern/Debug: Failed (Test run failed.
  Tests run: 2544 Passed: 2423 Inconclusive: 10 Failed: 1 Ignored: 120)
• xammac tests/Mac Modern/Release: Failed (Test run failed.
  Tests run: 2541 Passed: 2419 Inconclusive: 10 Failed: 1 Ignored: 121)
• xammac tests/Mac Modern/Release (all optimizations): Failed (Test run failed.
  Tests run: 2541 Passed: 2418 Inconclusive: 10 Failed: 1 Ignored: 122)

Pipeline on Agent XAMBOT-1102.BigSur
Merge 758ab99 into 6af32cb

[rolfbjarne]

Test failures are unrelated (https://github.com/xamarin/maccore/issues/2525).

Build is currently broken in main, waiting to merge until that's fixed (#13304).