Remove docproc-build-fix.patch, as the build problem it's fixing
now happens only if building html docs is explicitly enabled
(which we do not do).
(From OE-Core rev: 1310a71a81e0b19919fc622f676fa6106be6cf9d)
Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>