cairo: Do not try to remove nonexistent directories
Commit
0e1f8fa0 (bitbake.conf: propagate 'opengl' DISTRO_FEATURE to
native/nativesdk from target) changed the default PACKAGECONFIG for
native and nativesdk so that it becomes empty unless "x11" is in
DISTRO_FEATURES since "trace" was also removed (propbably
unintentionally). This highlighted than an empty PACKAGECONFIG would
lead to a build failure since /usr/bin is never created under these
conditions, but the recipe still tried to remove it.
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
