[ci] Remove mono as requirement

[rmarinho]

Description

Right now we have some requirements on our CI that need mono. I tried to remove here , and then I saw some failures later on fresh machines and I had to add it back here..

We should remove and rewrite all our pipeline to try to use dotnet test and dotnet nuget . I have identified the following places not having mono fails

• Device tests for android for example need mono to start the NUnit.ConsoleRunner
• Pack on macOS needs mono to start the NuGet.CommandLine.6.6.1

Relevant log output

Time Elapsed 00:00:53.65
Run UITests lib /Users/builder/azdo/_work/2/s/src/Compatibility/ControlGallery/test/Android.UITests/bin/Debug/net472/Microsoft.Maui.Controls.Android.UITests.dll
Add Where filter to NUnit cat==Issues
Could not resolve path for tool "mono" using these directories: /Users/builder/Library/Developer/Xamarin/android-sdk-macosx/emulator,/Users/builder/Library/Developer/Xamarin/android-sdk-macosx/platform-tools,/Users/builder/Library/Developer/Xamarin/android-sdk-macosx/cmdline-tools/latest/bin,/Users/builder/Library/Developer/Xamarin/android-sdk-macosx/cmdline-tools/7.0/bin,/Users/builder/Library/Developer/Xamarin/android-sdk-macosx/cmdline-tools/5.0/bin,/Users/builder/Library/Developer/Xamarin/android-sdk-macosx/tools/bin,/usr/local/microsoft/powershell/7,/Users/builder/azdo/_work/2/s/bin/dotnet,/Users/builder/.dotnet/tools,/Users/builder/azdo/_work/_tool/dotnet,/usr/local/bin,/usr/local/share/dotnet,~/.dotnet/tools,/Library/Frameworks/Mono.framework/Versions/Current/Commands,/usr/bin,/bin,/usr/sbin,/sbin
/Users/builder/azdo/_work/2/s/eng/devices/tools/NUnit.ConsoleRunner.3.16.3/tools/nunit3-console.exe is a .NET Framework executable, you might need to install Mono for it to execute successfully.
Executing: /Users/builder/azdo/_work/2/s/eng/devices/tools/NUnit.ConsoleRunner.3.16.3/tools/nunit3-console.exe "/Users/builder/azdo/_work/2/s/src/Compatibility/ControlGallery/test/Android.UITests/bin/Debug/net472/Microsoft.Maui.Controls.Android.UITests.dll" --where "cat==Issues" "--work=/Users/builder/azdo/_work/2/a/test-results/android" "--out=/Users/builder/azdo/_work/2/a/test-results/android/run_uitests_output-133531728934878300.log" "--config=Debug"
An error occurred when executing task 'cg-uitest'.
Completed in 00:02:45.3767402

dotnet-pack-additional
========================================
Executing task: dotnet-pack-additional
Could not resolve path for tool "mono" using these directories: /Users/builder/azdo/_work/2/s/bin/dotnet,/usr/local/microsoft/powershell/7,/Users/builder/.dotnet/tools,/Users/builder/azdo/_work/_tool/dotnet,/usr/local/bin,/usr/local/share/dotnet,~/.dotnet/tools,/Library/Frameworks/Mono.framework/Versions/Current/Commands,/usr/bin,/bin,/usr/sbin,/sbin
/Users/builder/azdo/_work/2/s/tools/NuGet.CommandLine.6.6.1/tools/NuGet.exe is a .NET Framework executable, you might need to install Mono for it to execute successfully.
Executing: /Users/builder/azdo/_work/2/s/tools/NuGet.CommandLine.6.6.1/tools/NuGet.exe install "_NativeAssets.windows" -OutputDirectory "/Users/builder/azdo/_work/2/s/artifacts/additional-assets" -Version "0.0.0-commit.e2c5c86249621857107c779af0f79b4d06613766.655" -ExcludeVersion -Source "https://aka.ms/skiasharp-eap/index.json" -NonInteractive
An error occurred when executing task 'dotnet-pack-additional'.
Completed in 00:00:00.1964573

[ghost]

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