How to Hide BuildEcom Admin Menus

function plt_hide_buildecom_menus() {
	//Hide "BuildEcom".
	remove_menu_page('buildecom-dashboard');
	//Hide "BuildEcom → Dashboard".
	remove_submenu_page('buildecom-dashboard', 'buildecom-dashboard');
	//Hide "BuildEcom → Banners".
	remove_submenu_page('buildecom-dashboard', 'buildecom-banners');
	//Hide "BuildEcom → Testimonials".
	remove_submenu_page('buildecom-dashboard', 'buildecom-testimonials');
	//Hide "BuildEcom → Order Status".
	remove_submenu_page('buildecom-dashboard', 'buildecom-order-status');
	//Hide "BuildEcom → Notification".
	remove_submenu_page('buildecom-dashboard', 'buildecom-notification');
	//Hide "BuildEcom → Settings".
	remove_submenu_page('buildecom-dashboard', 'buildecom-setting');
}

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

Where do I put this code?