Revert "[ARM] Generate ABI_optimization_goals build attribute, as described in the ARM ARM."

This reverts commit r254201 and r254202, as it broke test-suite,
self-hosting and sanitizer tests on ARM buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254234 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed