lld-link does not support the /WINMD option

[alvinhochun]

/WINMD[:{NO|ONLY}]: Enables generation of a Windows Runtime Metadata (.winmd) file - https://learn.microsoft.com/en-us/cpp/build/reference/winmd-generate-windows-metadata?view=msvc-170

This flag is passed by msbuild if Project->Link->GenerateWindowsMetadata is set in the project file.

lld-link currently fails with "lld-link : error : could not open '/WINMD:NO': no such file or directory" if this flag is given.

[llvmbot]

@llvm/issue-subscribers-lld-coff