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 <[e-mail]>
Reviewed-by: Nikolay Borisov <[e-mail]>
Reviewed-by: David Sterba <[e-mail]>
Signed-off-by: David Sterba <[e-mail]>

fs/btrfs/acl.c

···
 			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;