How to Hide IvyForms - The innovative Contact Form Builder Admin Menus

function plt_hide_ivyforms_menus() {
	//Hide "IvyForms".
	remove_menu_page('ivyforms');
	//Hide "IvyForms → All forms".
	remove_submenu_page('ivyforms', 'ivyforms-forms');
	//Hide "IvyForms → New form".
	remove_submenu_page('ivyforms', 'ivyforms-builder');
	//Hide "IvyForms → Entries".
	remove_submenu_page('ivyforms', 'ivyforms-entries');
	//Hide "IvyForms → Settings".
	remove_submenu_page('ivyforms', 'ivyforms-settings');
	//Hide "IvyForms → Integrations".
	remove_submenu_page('ivyforms', 'ivyforms-integrations');
	//Hide "IvyForms → Upgrade to PRO".
	remove_submenu_page('ivyforms', 'https://ivyforms.com/pricing?utm_source=ivy-lite&utm_medium=lite-upgrade&utm_content=ivy&utm_campaign=ivy');
}

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

Where do I put this code?