CGLLayer.h/m used JNFWeakJObjectWrapper
This has been removed from JDK.
However MTLLayer.h/m is basically a copy of CGLLayer.h/m and so the Lanai project still has a usage of this.
We need to remove it before integration into JDK and in fact even sooner than that since the code supporting importing the framework will soon be removed from the desktop module along with all the other uses.
If we don't do this then the Lanai build would then break as soon as JDK is synced into Lanai