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: 9d2dac56deda5afa4d77c5ddd7e1e8003f6d4725)
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>