apparmor: remove useless checks for NULL ->mnt

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

security/apparmor/lsm.c

@@ -215,7 +215,7 @@ static int common_perm_rm(int op, const struct path *dir,
 	struct inode *inode = d_backing_inode(dentry);
 	struct path_cond cond = { };
 
-	if (!inode || !dir->mnt || !mediated_filesystem(dentry))
+	if (!inode || !mediated_filesystem(dentry))
 		return 0;
 
 	cond.uid = inode->i_uid;
@@ -239,7 +239,7 @@ static int common_perm_create(int op, const struct path *dir,
 {
 	struct path_cond cond = { current_fsuid(), mode };
 
-	if (!dir->mnt || !mediated_filesystem(dir->dentry))
+	if (!mediated_filesystem(dir->dentry))
 		return 0;
 
 	return common_perm_dir_dentry(op, dir, dentry, mask, &cond);