Ahh that’s right.
GP’s option only turns the WooCommerce quantity option into a button and does not remove it.
You can try this CSS to remove it:
.woocommerce .quantity .qty {
display: none;
}
As for the cart page, try this CSS:
.woocommerce table.shop_table thead {
display: none;
}
.woocommerce table.cart td.actions, .woocommerce-page #content table.cart td.actions, .woocommerce-page table.cart td.actions {
display: none;
}
Please do keep in mind that all of these are elements coming from WooCommerce so the question should be handled by their support team π