Revert "[CMake] Use correct visibility for linked libraries in CMake"

This reverts commit r352654: this broke libcxx and sanitizer bots.

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@352658 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed