Eliminate prebuilts for 8.0

[MichaelSimons]

The following prebuilts exist and need to be removed.

arcade

• TFM trimming, and elimination of net4* targeting in Linux source-build arcade#10721

aspnetcore

• TFM trimming, and elimination of net4* targeting in Linux source-build aspnetcore#43696

command-line-api

• All projects should target net8.0 command-line-api#2049

deployment-tools

• TFM trimming, and elimination of net4* targeting in Linux source-build deployment-tools#217

format

• Update net7.0 TFM references to net8.0 format#1802

fsharp

• Update net7.0 TFM references to net8.0 fsharp#14765

msbuild

• TFM trimming, and elimination of net4* targeting in Linux source-build msbuild#7936
• Update net7.0 TFM references to net8.0 msbuild#8468

razor

• TFM trimming, and elimination of net4* targeting in Linux source-build razor#7071
• Update net7.0 TFM references to net8.0 razor#8293
• Pack operation of Razor projects not working in Linux environment razor#8332 - Causes prebuilts of Microsoft.CodeAnalysis.Razor.Tooling.Internal, Microsoft.NET.Sdk.Razor.SourceGenerators.Transport, and Microsoft.AspNetCore.Mvc.Razor.Extensions.Tooling.Internal
• Disable targeting Windows for source-build razor#8376 - Causes Microsoft.WindowsDesktop.App.Ref prebuilt

roslyn

• TFM trimming, and elimination of net4* targeting in Linux source-build roslyn#63746
• Update net7.0 TFM references to net8.0 roslyn#66930

roslyn-analyzers

• TFM trimming, and elimination of net4* targeting in Linux source-build roslyn-analyzers#6144
• Update net7.0 TFM references to net8.0 roslyn-analyzers#6490

runtime

• TFM trimming, and elimination of net4* targeting in Linux source-build runtime#74950
• Build Cecil repo in VMR #3232

sdk

• TFM trimming, and elimination of net4* targeting in Linux source-build sdk#27642
• Microsoft.AspNetCore.Watch.BrowserRefresh causes Microsoft.NETCore.App.Ref 6.0 prebuilts sdk#30272
• Update dependencies from source-build-reference-packages installer#15584 - New WcWidth from SBRP

source-build-reference-packages

• .NET 8: Tracking for TFM trimming, and elimination of net4* targeting in Linux source-build #3014 - Will eliminate need for full fx SBRPS

sourcelink

• Update to the latest TFM: net8.0 sourcelink#938

symreader

• TFM trimming, and elimination of net4* targeting in Linux source-build symreader#266

vstest

• Update net7.0 TFM references to net8.0 microsoft/vstest#4311
• Packages reported as prebuilts in .NET source-build microsoft/vstest#4403