Revert "Don't expect the 'empty-remote-url' remote to be listed"

Apparently git_remote_list() includes even remotes for which git_remote_load() would fail. Sorry @nulltoken, false alarm.

This reverts commit f358ec14.

tests-clar/network/remotes.c

@@ -183,13 +183,13 @@ void test_network_remotes__list(void)
 	git_config *cfg;
 
 	cl_git_pass(git_remote_list(&list, _repo));
-	cl_assert(list.count == 3);
+	cl_assert(list.count == 4);
 	git_strarray_free(&list);
 
 	cl_git_pass(git_repository_config(&cfg, _repo));
 	cl_git_pass(git_config_set_string(cfg, "remote.specless.url", "http://example.com"));
 	cl_git_pass(git_remote_list(&list, _repo));
-	cl_assert(list.count == 4);
+	cl_assert(list.count == 5);
 	git_strarray_free(&list);
 
 	git_config_free(cfg);