staging: erofs: remove a redundant marco in xattr

There is no need to '#if CONFIG_EROFS_FS_XATTR' in xattr.c,
let's remove it.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/erofs/xattr.c

@@ -420,7 +420,6 @@ const struct xattr_handler __maybe_unused erofs_xattr_security_handler = {
 };
 #endif
 
-#ifdef CONFIG_EROFS_FS_XATTR
 const struct xattr_handler *erofs_xattr_handlers[] = {
 	&erofs_xattr_user_handler,
 #ifdef CONFIG_EROFS_FS_POSIX_ACL
@@ -433,7 +432,6 @@ const struct xattr_handler *erofs_xattr_handlers[] = {
 #endif
 	NULL,
 };
-#endif
 
 struct listxattr_iter {
 	struct xattr_iter it;