btrfs: remove unnecessary curly braces in btrfs_get_acl

It's only coding style fix not functinal change.  When if/else has only
one statement then the braces are not needed.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/acl.c

@@ -40,13 +40,12 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
 			return ERR_PTR(-ENOMEM);
 		size = btrfs_getxattr(inode, name, value, size);
 	}
-	if (size > 0) {
+	if (size > 0)
 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
-	} else if (size == -ENODATA || size == 0) {
+	else if (size == -ENODATA || size == 0)
 		acl = NULL;
-	} else {
+	else
 		acl = ERR_PTR(size);
-	}
 	kfree(value);
 
 	return acl;