How to Hide WP 3D Slice Box Slider Admin Menus

function plt_hide_wp_3d_slice_box_slider_menus() {
	//Hide "WP 3D slider Images".
	remove_menu_page('edit.php?post_type=wp3d_images');
	//Hide "WP 3D slider Images → All 3D Images".
	remove_submenu_page('edit.php?post_type=wp3d_images', 'edit.php?post_type=wp3d_images');
	//Hide "WP 3D slider Images → Add New 3D Image".
	remove_submenu_page('edit.php?post_type=wp3d_images', 'post-new.php?post_type=wp3d_images');
	//Hide "WP 3D slider Images → Slider Settings".
	remove_submenu_page('edit.php?post_type=wp3d_images', 'setting.php');
}

add_action('admin_menu', 'plt_hide_wp_3d_slice_box_slider_menus', 11);

Where do I put this code?