Do not free config when creating remote

The regression was introduced in 22261344

src/remote.c

@@ -260,7 +260,6 @@ on_error:
 	if (error)
 		git_remote_free(remote);
 
-	git_config_free(config);
 	git_buf_free(&canonical_url);
 	git_buf_free(&var);
 	return error;