Revert "Added bunch of flags, step by step"

This reverts commit e8a6e76078b00e7925b04d4681334884e29a14f7.
Revert "Bumped to R74.1"

This reverts commit 92d667d7880d597e13e5fa39efddf6ef89b1aabd.
Revert "Fixed compiler flag bug"

This reverts commit 90e00846c137dfb5a37e03060d39716fd73207a7.