How to Hide MangBoard WP Admin Menus

function plt_hide_mangboard_menus() {
	//Hide "MangBoard".
	remove_menu_page('mbw_dashboard');
	//Hide "MangBoard → Dashboard".
	remove_submenu_page('mbw_dashboard', 'mbw_dashboard');
	//Hide "MangBoard → Board Setting".
	remove_submenu_page('mbw_dashboard', 'mbw_board_options');
	//Hide "MangBoard → Users".
	remove_submenu_page('mbw_dashboard', 'mbw_users');
	//Hide "MangBoard → Option Setting".
	remove_submenu_page('mbw_dashboard', 'mbw_options');
	//Hide "MangBoard → Files".
	remove_submenu_page('mbw_dashboard', 'mbw_files');
	//Hide "MangBoard → Statistics".
	remove_submenu_page('mbw_dashboard', 'mbw_analytics');
	//Hide "MangBoard → Referers".
	remove_submenu_page('mbw_dashboard', 'mbw_referers');
	//Hide "MangBoard → Logs".
	remove_submenu_page('mbw_dashboard', 'mbw_logs');
	//Hide "MangBoard → STORE".
	remove_submenu_page('mbw_dashboard', 'mbw_store');
}

add_action('admin_menu', 'plt_hide_mangboard_menus', 39);

Where do I put this code?