Remove user-specific descrition files and config fragments from main machine
description file otherwise double patch/config inclusion may happen. These
files/fragments are already included on the SRC_URI (see poky commit 2db8f3),
so no need to reference these inside machine.scc files.
[YOCTO #11586]
(From meta-yocto rev: 86ab7ab6688f250bb5777371d2cbc28c770847d4)
Signed-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>