clang/test/Modules/prebuilt-module.m: Prune "-triple" to fix a configuration mismatch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@279207 91177308-0d34-0410-b5e6-96231b3b80d8

Conflicts:
  test/Modules/prebuilt-module.m
1 file changed