Small model and JIT generally don't go well with each other.

On LP64 platforms, it will work or not depending on the choosen memory
layout, so neither PASS nor XFAIL is appropiate.
As UNSUPPORTED as per-test target doesn't exist (yet), remove the test
instead to unbreak the builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222767 91177308-0d34-0410-b5e6-96231b3b80d8