Merge pull request dotnet/coreclr#9236 from wtgodbe/FixDeleteFiles
authorWilliam Godbe <wigodbe@microsoft.com>
Wed, 1 Feb 2017 00:13:28 +0000 (16:13 -0800)
committerGitHub <noreply@github.com>
Wed, 1 Feb 2017 00:13:28 +0000 (16:13 -0800)
Delete requires_signing files before test archival

Commit migrated from https://github.com/dotnet/coreclr/commit/5eb59a5b8d46ea3b536eda673a888468b97db13e


Trivial merge