Revert " fix Remove opaque check in GLRenderer when preparing dirty region."

This reverts commit b55a34f586162b3c99e66586576ba75ce2c61974.
Revert "fix derps"

This reverts commit 993055ed420e1096fb9649daa315c822b5b11071.
Revert "Remove opaque check in GLRenderer when preparing dirty region."

This reverts commit e0eb0d281f0351560995c79299014aab3e8e461c.