Remove features?

I would like to remove the option to add images to the product gallery.
I thought these would be easy by using

add_action( 'admin_init', 'remove_deh_gallery' );
	function remove_deh_gallery() {
		remove_meta_box('woocommerce-product-images', 'product', 'side' );
	}

But instead my whole admin breaks visually, like literally looks liked it glitches to the point of no return. I would screenshot but it would be even more confusing to you and may cause seizures.

http://wordpress.org/plugins/woocommerce/