How to Hide WP Coder Admin Menus

function plt_hide_wp_coder_menus() {
	//Hide "WP Coder".
	remove_menu_page('wp-coder');
	//Hide "WP Coder → All Codes".
	remove_submenu_page('wp-coder', 'wp-coder');
	//Hide "WP Coder → Add new".
	remove_submenu_page('wp-coder', 'wp-coder-settings');
	//Hide "WP Coder → Snippets".
	remove_submenu_page('wp-coder', 'wp-coder-snippets');
	//Hide "WP Coder → Tools".
	remove_submenu_page('wp-coder', 'wp-coder-tools');
	//Hide "WP Coder → Global PHP".
	remove_submenu_page('wp-coder', 'wp-coder-global');
	//Hide "WP Coder → Import / Export".
	remove_submenu_page('wp-coder', 'wp-coder-import-export');
	//Hide "WP Coder → Support".
	remove_submenu_page('wp-coder', 'wp-coder-support');
}

add_action('admin_menu', 'plt_hide_wp_coder_menus', 11);

Where do I put this code?