Remove decorator for now-passing test

I am not sure if this is due to an LLDB change, or the fact that FreeBSD
now has Clang 3.4.

llvm.org/pr19075


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206757 91177308-0d34-0410-b5e6-96231b3b80d8