How to Hide AI Copilot - Content Generator Admin Menus

function plt_hide_ai_copilot_content_generator_menus() {
	//Hide "AI Copilot".
	remove_menu_page('waic-workspace');
	//Hide "AI Copilot → Workspace".
	remove_submenu_page('waic-workspace', 'admin.php?page=waic-workspace&tab=workspace');
	//Hide "AI Copilot → Scenarios".
	remove_submenu_page('waic-workspace', 'admin.php?page=waic-workspace&tab=history');
	//Hide "AI Copilot → Settings".
	remove_submenu_page('waic-workspace', 'admin.php?page=waic-workspace&tab=settings');
	//Hide "AI Copilot → License".
	remove_submenu_page('waic-workspace', 'admin.php?page=waic-workspace&tab=license');
}

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

Where do I put this code?