apparmor: remove unused redundant variable stop

The boolean variable 'stop' is being set but never read. This
is a redundant variable and can be removed.

Cleans up clang warning: Value stored to 'stop' is never read
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NJohn Johansen <john.johansen@canonical.com>

security/apparmor/lib.c

@@ -423,7 +423,6 @@ int aa_check_perms(struct aa_profile *profile, struct aa_perms *perms,
 		   void (*cb)(struct audit_buffer *, void *))
 {
 	int type, error;
-	bool stop = false;
 	u32 denied = request & (~perms->allow | perms->deny);
 
 	if (likely(!denied)) {
@@ -444,8 +443,6 @@ int aa_check_perms(struct aa_profile *profile, struct aa_perms *perms,
 		else
 			type = AUDIT_APPARMOR_DENIED;
 
-		if (denied & perms->stop)
-			stop = true;
 		if (denied == (denied & perms->hide))
 			error = -ENOENT;