How to Hide HT Contact Form Widget For Elementor Page Builder & Gutenberg Blocks & Form Builder. Admin Menus

function plt_hide_ht_contactform_menus() {
	//Hide "HT Contact Form".
	remove_menu_page('htcontact-form');
	//Hide "HT Contact Form → Welcome".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form');
	//Hide "HT Contact Form → Forms".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form&path=forms');
	//Hide "HT Contact Form → New Form".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form&path=editor');
	//Hide "HT Contact Form → Entries".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form&path=all_entries');
	//Hide "HT Contact Form → Global Settings".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form&path=settings');
	//Hide "HT Contact Form → Integrations".
	remove_submenu_page('htcontact-form', 'admin.php?page=htcontact-form&path=integrations');
	//Hide "HT Contact Form → Recommendations".
	remove_submenu_page('htcontact-form', 'ht-contactform_extensions');
}

add_action('admin_menu', 'plt_hide_ht_contactform_menus', 21);

Where do I put this code?