EmuGL: remove broken EGL buffer refcounting

The emulator EGL implementation tried to hold its own reference to
buffers acquired/released with dequeueBuffer/queueBuffer, but was
missing an incRef after dequeueBuffer during swapBuffers.

Since the native window holds a reference to the buffer between
dequeueBuffer and queueBuffer, the EGL reference isn't needed anyway.

Change-Id: I95e4f9f4faf59198f99939cdca6603fe176c56bc
1 file changed