Remove broken command flag
Remove broken command flag

I was using it for testing, r339089 shouldn't have contained it.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@339090 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang