Revert "UBUNTU: SAUCE: apparmor: fix oops in bind_mnt when dev_path lookup fails"

This reverts commit 024dce01.

BugLink: https://bugs.launchpad.net/bugs/1666897Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

security/apparmor/mount.c

@@ -335,7 +335,6 @@ static int match_mnt_path_str(struct aa_profile *profile, const struct path *mnt
 		goto audit;
 	if (IS_ERR(devname)) {
 		error = PTR_ERR(devname);
-		devname = NULL;
 		info = devinfo;
 		goto audit;
 	}