How to Hide B Carousel Block Admin Menus

function plt_hide_b_carousel_block_menus() {
	//Hide "B Carousel".
	remove_menu_page('edit.php?post_type=bicb');
	//Hide "B Carousel → B Carousel".
	remove_submenu_page('edit.php?post_type=bicb', 'edit.php?post_type=bicb');
	//Hide "B Carousel → Add New".
	remove_submenu_page('edit.php?post_type=bicb', 'post-new.php?post_type=bicb');
	//Hide "B Carousel → Help".
	remove_submenu_page('edit.php?post_type=bicb', 'bicb-help');
	//Hide "B Carousel → Upgrade".
	remove_submenu_page('edit.php?post_type=bicb', 'bicb-upgrade');
}

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