[xabt] remove unused MSBuild tasks (#10209)

Context: #10206

@copilot found these in #10206, so I checked their usage one-by-one to
remove completely unused code.

Many of these look *very* old, like `<GetConvertedJavaLibraries/>` for
example, mentions an old Android tool named `jack`.

Removing the `<UsingTask>` declarations should also slightly improve
MSBuild evaluation time. From what I've seen profiling in the past,
MSBuild creates a full path string for each `AssemblyFile` entry.

Author: jonathanpeppers

Documentation/docs-mobile/messages/index.md

@@ -267,19 +267,15 @@ and `NNN` is a 3 digit number indicating the type of the unhandled `Exception`.
 * `BBA` - `BuildBaseAppBundle`
 * `BGN` - `BindingsGenerator`
 * `BLD` - `BuildApk`
-* `CAL` - `CreateAdditionalLibraryResourceCache`
-* `CAR` - `CalculateAdditionalResourceCacheDirectories`
 * `CCR` - `CopyAndConvertResources`
 * `CCV` - `ConvertCustomView`
 * `CDF` - `ConvertDebuggingFiles`
 * `CDJ` - `CheckDuplicateJavaLibraries`
 * `CFI` - `CheckForInvalidResourceFileNames`
-* `CFR` - `CheckForRemovedItems`
 * `CGJ` - `CopyGeneratedJavaResourceClasses`
 * `CGS` - `CheckGoogleSdkRequirements`
 * `CIC` - `CopyIfChanged`
 * `CIL` - `CilStrip`
-* `CLA` - `CollectLibraryAssets`
 * `CLC` - `CalculateLayoutCodeBehind`
 * `CLP` - `ClassParse`
 * `CLR` - `CreateLibraryResourceArchive`
@@ -290,7 +286,6 @@ and `NNN` is a 3 digit number indicating the type of the unhandled `Exception`.
 * `CNE` - `CollectNonEmptyDirectories`
 * `CNL` - `CreateNativeLibraryArchive`
 * `CPD` - `CalculateProjectDependencies`
-* `CPF` - `CollectPdbFiles`
 * `CPI` - `CheckProjectItems`
 * `CPR` - `CopyResource`
 * `CPT` - `ComputeHash`
@@ -311,7 +306,6 @@ and `NNN` is a 3 digit number indicating the type of the unhandled `Exception`.
 * `GAR` - `GetAdditionalResourcesFromAssemblies`
 * `GAS` - `GetAppSettingsDirectory`
 * `GCB` - `GenerateCodeBehindForLayout`
-* `GCJ` - `GetConvertedJavaLibraries`
 * `GEP` - `GetExtraPackages`
 * `GFT` - `GetFilesThatExist`
 * `GIL` - `GetImportedLibraries`

src/Xamarin.Android.Build.Tasks/Tasks/CalculateAdditionalResourceCacheDirectories.cs

@@ -38,15 +38,13 @@ Copyright (C) 2011-2012 Xamarin. All rights reserved.
 <UsingTask TaskName="Xamarin.Android.Tasks.CalculateAdditionalResourceCacheDirectories" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CalculateLayoutCodeBehind" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CalculateProjectDependencies" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.CheckForRemovedItems" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CheckForInvalidResourceFileNames" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CheckClientHandlerType" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectAssemblyFilesToCompress" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectDalvikFilesForArchive" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectJarContentFilesForArchive" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectNativeFilesForArchive" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectNonEmptyDirectories" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.CollectPdbFiles" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectRuntimeConfigFilesForArchive" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CollectTypeMapFilesForArchive" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CompressAssemblies" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
@@ -55,7 +53,6 @@ Copyright (C) 2011-2012 Xamarin. All rights reserved.
 <UsingTask TaskName="Xamarin.Android.Tasks.ConvertCustomView" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CopyIfChanged" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CopyResource" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.CreateAdditionalLibraryResourceCache" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CreateAssemblyStore" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CreateMsymManifest" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CreateResgenManifest" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
@@ -79,7 +76,6 @@ Copyright (C) 2011-2012 Xamarin. All rights reserved.
 <UsingTask TaskName="Xamarin.Android.Tasks.GenerateTypeMappings" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.GetAndroidDefineConstants" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.GetAppSettingsDirectory" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.GetConvertedJavaLibraries" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.GetFilesThatExist" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.GetMonoPlatformJar" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.KeyTool" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
@@ -99,12 +95,9 @@ Copyright (C) 2011-2012 Xamarin. All rights reserved.
 <UsingTask TaskName="Xamarin.Android.Tasks.RewriteMarshalMethods" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.GetExtraPackages" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CopyGeneratedJavaResourceClasses" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.ReadJavaStubsCache" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.ScanAssemblies" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.SplitProperty" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CheckProjectItems" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CheckDuplicateJavaLibraries" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
-<UsingTask TaskName="Xamarin.Android.Tasks.CollectLibraryAssets" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.CompileNativeAssembly" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.LinkApplicationSharedLibraries" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />
 <UsingTask TaskName="Xamarin.Android.Tasks.PrepareAbiItems" AssemblyFile="Xamarin.Android.Build.Tasks.dll" />