remote: remove fetch parameter from create_anonymous

An anonymous remote is not configured and cannot therefore have
configured refspecs. Remove the parameter which adds this from the
constructor.

examples/network/fetch.c

@@ -92,7 +92,7 @@ int fetch(git_repository *repo, int argc, char **argv)
 	// Figure out whether it's a named remote or a URL
 	printf("Fetching %s for repo %p\n", argv[1], repo);
 	if (git_remote_lookup(&remote, repo, argv[1]) < 0) {
-		if (git_remote_create_anonymous(&remote, repo, argv[1], NULL) < 0)
+		if (git_remote_create_anonymous(&remote, repo, argv[1]) < 0)
 			return -1;
 	}
 

examples/network/ls-remote.c

@@ -15,7 +15,7 @@ static int use_remote(git_repository *repo, char *name)
 	// Find the remote by name
 	error = git_remote_lookup(&remote, repo, name);
 	if (error < 0) {
-		error = git_remote_create_anonymous(&remote, repo, name, NULL);
+		error = git_remote_create_anonymous(&remote, repo, name);
 		if (error < 0)
 			goto cleanup;
 	}