How to Hide Everest Forms Admin Menus

function plt_hide_everest_forms_menus() {
	//Hide "Everest Forms".
	remove_menu_page('everest-forms');
	//Hide "Everest Forms → All Forms".
	remove_submenu_page('everest-forms', 'evf-builder');
	//Hide "Everest Forms → Add New".
	remove_submenu_page('everest-forms', 'evf-builder&create-form=1');
	//Hide "Everest Forms → Entries".
	remove_submenu_page('everest-forms', 'evf-entries');
	//Hide "Everest Forms → Settings".
	remove_submenu_page('everest-forms', 'evf-settings');
	//Hide "Everest Forms → Tools".
	remove_submenu_page('everest-forms', 'evf-tools');
	//Hide "Everest Forms → Add-ons".
	remove_submenu_page('everest-forms', 'evf-addons');
	//Hide "Everest Forms → Upgrade to Pro".
	remove_submenu_page('everest-forms', 'https://everestforms.net/pricing');
}

add_action('admin_menu', 'plt_hide_everest_forms_menus', 81);

Where do I put this code?