Fixing acceptable breakages file after set error=true on obsolete items

.gitmodules

@@ -34,10 +34,6 @@
     path = external/sqlite
     url = https://github.com/xamarin/sqlite.git
     branch = 3.31.1
-[submodule "external/xamarin-android-api-compatibility"]
-    path = external/xamarin-android-api-compatibility
-    url = https://github.com/xamarin/xamarin-android-api-compatibility.git
-    branch = master
 [submodule "external/xamarin-android-tools"]
     path = external/xamarin-android-tools
     url = https://github.com/xamarin/xamarin-android-tools

build-tools/automation/azure-pipelines.yaml

@@ -426,35 +426,6 @@ stages:
   displayName: Test
   dependsOn: mac_build
   jobs:
-  # Check - "Xamarin.Android (Test API Compatibility)"
-  - job: mac_api_compat
-    displayName: API Compatibility
-    pool: $(HostedMacMojave)
-    timeoutInMinutes: 60
-    cancelTimeoutInMinutes: 5
-    workspace:
-      clean: all
-    steps:
-    - checkout: self
-      submodules: recursive
-
-    - template: yaml-templates/run-installer.yaml
-
-    - script: |
-        make prepare-update-mono PREPARE_CI=1 V=1 PREPARE_AUTOPROVISION=1 CONFIGURATION=$(XA.Build.Configuration)
-        make prepare PREPARE_CI=1 PREPARE_AUTOPROVISION=1 V=1 CONFIGURATION=$(XA.Build.Configuration)
-      displayName: make prepare
-
-    - script: >
-        make run-api-compatibility-tests V=1 CONFIGURATION=$(XA.Build.Configuration)
-        FRAMEWORK_DIR=/Library/Frameworks/Xamarin.Android.framework/Versions/Current/lib/xamarin.android/xbuild-frameworks/MonoAndroid
-      displayName: make run-api-compatibility-tests
-
-    - powershell: |
-        $breakageReports = Get-ChildItem $(System.DefaultWorkingDirectory)/bin/Test$(XA.Build.Configuration)/compatibility -Filter *.html
-        foreach ($report in $breakageReports) {
-            Write-Host "##vso[task.uploadsummary]$(System.DefaultWorkingDirectory)/bin/Test$(XA.Build.Configuration)/compatibility/$report"
-        }
 
   # Check - "Xamarin.Android (Test APK Instrumentation - macOS)"
   - job: mac_apk_tests