rootfs: only use dnf to cleanup if package management is enabled

If package management has been disabled then we've already removed all the
state, and running 'dnf clean all' again will simply recreate a lot of the
files.

(From OE-Core rev: 4524068ad2248b37fb08a24828d018e2f7e6a761)

(From OE-Core rev: f23332dc6a0c5b49246b4d17ec4e6fcad0cb7d47)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/rootfs.py

@@ -472,7 +472,8 @@ class RpmRootfs(Rootfs):
         self._log_check_error()
 
     def _cleanup(self):
-        self.pm._invoke_dnf(["clean", "all"])
+        if bb.utils.contains("IMAGE_FEATURES", "package-management", True, False, self.d):
+            self.pm._invoke_dnf(["clean", "all"])
 
 
 class DpkgOpkgRootfs(Rootfs):