Revert "SurfaceFlinger: Change to support framebuffer flip for 2D blitters"

This reverts commit 5b654fa0ec278ed6c72894fd124686a21a39c1c7.

Conflicts:

	services/surfaceflinger/DisplayHardware/HWComposer.cpp
Revert "gui: Allow devices to disable fence sync"

This reverts commit d71ace09067943c100dd350a3253c77e44593569.

Conflicts:

	libs/gui/Android.mk
Revert "Add support for custom buffer sizes.."

This reverts commit d6eecf50919312c1dd778c5742de72bb98f98f1a.

Conflicts:

	include/gui/BufferQueue.h
	libs/gui/Android.mk
	libs/ui/Android.mk
	libs/ui/GraphicBufferAllocator.cpp
ifdef HWC_BLIT

Change-Id: If67c8ae70fadb1309990336ae97fb7da2dd62c7d