tsan: remove "printing report from signal handler. Can crash or hang" output
it was added to debug mysterious hangs, but it does not seem to happen anymore
now it only clutter up output


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@182089 91177308-0d34-0410-b5e6-96231b3b80d8