Revert llvm/test/MC/ELF/noexec.s in r227074, "Fix a problem where the AArch64 ELF assembler was failing with"

It should be split into target-specific location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227080 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed