Fix refunds, (#46)

* Fix refunds, no need to check if refund possible, done by WooCommerce already.

Author: ndeet

src/Gateway/AbstractGateway.php

@@ -194,11 +194,14 @@ public function process_refund( $order_id, $amount = null, $reason = '' ) {
 		}
 
 		// Make sure the refund amount is not greater than the invoice amount.
-		if ($amount > $order->get_remaining_refund_amount()) {
+		// This is done by WC and no need to do it here, refund is already saved at this stage so below won't work.
+		// Leaving it here for future reference.
+		/*if ($amount > $order->get_remaining_refund_amount()) {
 			$errAmount = __METHOD__ . ': the refund amount can not exceed the order amount, aborting. Remaining amount ' . $order->get_remaining_refund_amount();
 			Logger::debug($errAmount);
 			return new \WP_Error('1', $errAmount);
 		}
+		*/
 
 		// Create the payout on BTCPay Server.
 		// Handle Sats-mode.