Revert "[lit] Adding config initialization to lit tests in clang-tools-extra"

This reverts commit r328060 because a test that was inteded to run on
Windows but never ran before due to the missing config initialization
is now being executed and is failing.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@328069 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed