How to Hide InspirePulse Quotes Admin Menus

function plt_hide_inspirepulse_quotes_menus() {
	//Hide "InspirePulse Quotes".
	remove_menu_page('inspqu-dashboard');
	//Hide "InspirePulse Quotes → Dashboard".
	remove_submenu_page('inspqu-dashboard', 'inspqu-dashboard');
	//Hide "InspirePulse Quotes → All Quotes".
	remove_submenu_page('inspqu-dashboard', 'inspqu-all-quotes');
	//Hide "InspirePulse Quotes → Add New Quote".
	remove_submenu_page('inspqu-dashboard', 'inspqu-add-quote');
	//Hide "InspirePulse Quotes → Categories".
	remove_submenu_page('inspqu-dashboard', 'inspqu-categories');
	//Hide "InspirePulse Quotes → Settings".
	remove_submenu_page('inspqu-dashboard', 'inspqu-settings');
	//Hide "InspirePulse Quotes → About InspirePulse".
	remove_submenu_page('inspqu-dashboard', 'inspqu-about');
	//Hide "InspirePulse Quotes →".
	remove_submenu_page('inspqu-dashboard', 'inspqu-edit-quote');
	//Hide "InspirePulse Quotes →".
	remove_submenu_page('inspqu-dashboard', 'inspqu-show-backups');
	//Hide "InspirePulse Quotes →".
	remove_submenu_page('inspqu-dashboard', 'inspqu-shortcodes');
}

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

Where do I put this code?