Remove System.CommandLine dependency

[AntonLapounov]

System.CommandLine package is no longer needed for Crossgen2.

[AntonLapounov]

Apparently this repo still consumes a release/5.0 build of Crossgen2. The dependency is removed in 6.0 builds.

  <New>
    <Usage Id="Microsoft.CSharp" Version="4.4.1" File="artifacts/src/runtime.cf258a14b70ad9069470a108f13765e0e5988f51/artifacts/obj/coreclr/ILVerify/project.assets.json" />
    <Usage Id="Microsoft.CSharp" Version="4.4.1" File="artifacts/src/runtime.cf258a14b70ad9069470a108f13765e0e5988f51/artifacts/obj/coreclr/crossgen2/project.assets.json" />
    <Usage Id="System.CommandLine" Version="2.0.0-beta1.20253.1" File="artifacts/src/runtime.cf258a14b70ad9069470a108f13765e0e5988f51/artifacts/obj/coreclr/ILVerify/project.assets.json" IsDirectDependency="true" />
    <Usage Id="System.CommandLine" Version="2.0.0-beta1.20253.1" File="artifacts/src/runtime.cf258a14b70ad9069470a108f13765e0e5988f51/artifacts/obj/coreclr/crossgen2/project.assets.json" IsDirectDependency="true" />
  </New>

[crummel]

@crummel to follow up

[AntonLapounov]

We are discussing whether want to use System.CommmandLine in other Runtime packages. If yes, we will add a reference there.

[omajid]

dotnet/core#5853 (comment) says that the SDK uses System.CommandLine. If that's true, I dont think we can drop it from source-build.

[AntonLapounov]

@omajid My understanding is that System.CommandLine should be listed in SDK's eng/Version.Details.xml then.

[crummel]

Triage: @crummel to follow up on what actually needs this and file upstream PR to fix Version.Details.xml.

[dseefeld]

This looks like it includes updates for 6.0. We should pick those changes up with ArPow. This should not be needed in source-build master.

Thanks for bringing this to our attention.