Revert "Produce less broken basic block sequences for __finally blocks."

The test is broken on buildbots:
http://lab.llvm.org:8080/green/job/clang-stage2-configure-Rlto_check/2279/

This reverts commit adda738b6dc533c42db5f5f5b31344098a3aba7d.

llvm-svn: 230472