How to Hide Quiz Cat Free Admin Menus

function plt_hide_quiz_cat_menus() {
	//Hide "Quiz Cat".
	remove_menu_page('edit.php?post_type=fca_qc_quiz');
	//Hide "Quiz Cat → All Quizzes".
	remove_submenu_page('edit.php?post_type=fca_qc_quiz', 'fca-qc-list');
	//Hide "Quiz Cat → Add New".
	remove_submenu_page('edit.php?post_type=fca_qc_quiz', 'fca-qc-new');
	//Hide "Quiz Cat → Featured Plugins".
	remove_submenu_page('edit.php?post_type=fca_qc_quiz', 'fca-featured-plugins');
	//Hide "Quiz Cat → Upgrade to Premium".
	remove_submenu_page('edit.php?post_type=fca_qc_quiz', 'quiz-cat-upgrade');
}

add_action('admin_menu', 'plt_hide_quiz_cat_menus', 11);
Where do I put this code?