Disable format checking

We still have troubles as clang is not properly built yet. I messed up a path
in the PollyBuilder and am waiting for another buildmaster restart.

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@195520 91177308-0d34-0410-b5e6-96231b3b80d8
Really stop the buildbot noise

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@195521 91177308-0d34-0410-b5e6-96231b3b80d8