Revert "Suppress compiler warnings due to GCC bug 34734."

This reverts commit 5da989bb8aba2d22f61de9a81fe73decf6739492.
Revert "Suppress compiler warnings due to GCC bug 34734."

This reverts commit 16a3f31cb4309491b9c22d9870ff7a0c5cba8da9.