.NET SDK has some runtime folders that can probably be trimmed

[tmds]

I've extracted .NET 7 preview 5 tar.gz for Linux.

The installation contains a number of win folders:

./sdk/7.0.100-preview.5.22307.18/Sdks/Microsoft.NET.Sdk.Publish/tools/net7.0/runtimes/win
./sdk/7.0.100-preview.5.22307.18/DotnetTools/dotnet-format/runtimes/win
./sdk/7.0.100-preview.5.22307.18/DotnetTools/dotnet-watch/7.0.100-preview.5.22307.7/tools/net7.0/any/runtimes/win
./sdk/7.0.100-preview.5.22307.18/FSharp/runtimes/win
./sdk/7.0.100-preview.5.22307.18/runtimes/win

These folders are probably not necessary on Linux and can be left out the SDK.

[tmds]

cc @crummel @MichaelSimons @omajid

[tmds]

cc @richlander

[richlander]

Similar to:

• .NET 8: Enable .NET product to be optimized by making SDK construction coherent sdk#16895
• .NET 8: No longer build Windows-specific assets (except on Windows) source-build#2901

I think it would be great if we could use .NET 7 source-build as a proof of concept for the future goals.