config: Don't print warning when XDG_CONFIG_HOME isn't set

According to the spec, it's ok for this not to be set and just means that
we should default to $HOME/.config.

clients/config.c

@@ -147,9 +147,6 @@ config_file_path(const char *name)
 
 	config_dir = getenv("XDG_CONFIG_HOME");
 	if (!config_dir) {
-		fprintf(stderr, "XDG_CONFIG_HOME is not set,"
-				" falling back to $HOME/.config\n");
-
 		home_dir = getenv("HOME");
 		if (!home_dir) {
 			fprintf(stderr, "HOME is not set, using cwd.\n");

clients/desktop-shell.c

@@ -370,8 +370,6 @@ int main(int argc, char *argv[])
 			  &desktop);
 	free(config_file);
 
-	printf("panel color: %08x\n", key_panel_color);
-
 	desktop_shell_set_panel(desktop.shell,
 				window_get_wl_surface(desktop.panel->window));