Removing an XFAIL which shouldn't apply. We no longer care about MSVC 9, and this test probably should not have been XFAILed everywhere regardless. The test passes on Windows with MSVC 12.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209148 91177308-0d34-0410-b5e6-96231b3b80d8