Pablo Guides

function pablo_remove_buy_buttons(){

   $product = get_product();

   if ( has_term( 'samsuungf', 'product_cat') ){

   // remove all purchase buttons

                            remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );

   remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );

   remove_action( 'woocommerce_simple_add_to_cart', 'woocommerce_simple_add_to_cart', 30 );

   remove_action( 'woocommerce_grouped_add_to_cart', 'woocommerce_grouped_add_to_cart', 30 );

   remove_action( 'woocommerce_variable_add_to_cart', 'woocommerce_variable_add_to_cart', 30 );

   remove_action( 'woocommerce_external_add_to_cart', 'woocommerce_external_add_to_cart', 30 );

   }

}

add_action( 'wp', 'pablo_remove_buy_buttons' );