Revert "Fix Tulsi generated project showing .pcm not found warnings as errors (#136)"
Revert "Fix Tulsi generated project showing .pcm not found warnings as errors (#136)"

This reverts commit 07cd4a0ee534efb18c49760bf406b795dd432ea5.

As of Xcode 12, this is no longer an issue. Xcode now displays pcm not
found warnings correctly as warnings.

bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi