Revert "hwc: Configure pipe for FB even if we exceed max layers"

This commit seems to be causing cached frame redraw on d2vzw in
various applications. (moonreader / appygeek / falcon pro / facebook)

This reverts commit 68f1fcb822d49bd5362c4627beae74631fd40375.
display: Use actual kernel headers for all builds

 * Kill all device headers.

Change-Id: I1add22c0bc33942bc8f89dbb37333bf08d49bf72
libqdutils: Use -Wno-attributes

Change-Id: I25f19595ed29434938861a5462edc27e8d8ef717
libcopybit: fix for narrowing conversion in C++11.

Change-Id: Ic73a3c94b5142d35e0912f98acaa3d0c98163e0a
-Wno-attributes for alloc_controller
hardware/qcom/display-caf/libgralloc/alloc_controller.cpp:51:269: error: type attributes ignored after type is already defined
[-Werror=attributes]
cc1plus: all warnings being treated as errors

Change-Id: I3e930be5d0ab9e6f48650d12abf7dd182dcb3f95