How to Hide OOPSpam Anti-Spam Admin Menus

function plt_hide_oopspam_anti_spam_menus() {
	//Hide "OOPSpam Anti-Spam".
	remove_menu_page('wp_oopspam_settings_page');
	//Hide "OOPSpam Anti-Spam → Settings".
	remove_submenu_page('wp_oopspam_settings_page', 'wp_oopspam_settings_page');
	//Hide "OOPSpam Anti-Spam → Form Spam Entries".
	remove_submenu_page('wp_oopspam_settings_page', 'wp_oopspam_frm_spam_entries');
	//Hide "OOPSpam Anti-Spam → Form Valid Entries".
	remove_submenu_page('wp_oopspam_settings_page', 'wp_oopspam_frm_ham_entries');
	//Hide "OOPSpam Anti-Spam → ↺ Setup Wizard".
	remove_submenu_page('wp_oopspam_settings_page', 'oopspam_setup_wizard');
}

add_action('admin_menu', 'plt_hide_oopspam_anti_spam_menus', 100);
Where do I put this code?