[release/10.0.1xx] Clean existing .dotnet dir#2934

mthalman merged 1 commit intorelease/10.0.1xxdotnet/dotnet:release/10.0.1xxfrom

backport/pr-2895-to-release/10.0.1xxdotnet/dotnet:backport/pr-2895-to-release/10.0.1xxCopy head branch name to clipboard