There is no reason to include a path in foo[dirs] if it is also in
foo[cleandirs] (except if it is the last path in foo[dirs]).
(From OE-Core rev: 9f610748f760b2d58d5250b55ae4b268909f33ef)
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>