Revert "[mips] Guard traps for microMIPS correctly"

This appears to have broken the expensive checks bot in
a strange fashion. Reverting until I can investigate.

This reverts r327409.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327427 91177308-0d34-0410-b5e6-96231b3b80d8
17 files changed