consider Symfony retry policy

Tests/Transport/GpsSenderTest.php

@@ -13,7 +13,6 @@
 use PetitPress\GpsMessengerBundle\Transport\Stamp\OrderingKeyStamp;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Messenger\Stamp\RedeliveryStamp;
 use Symfony\Component\Messenger\Transport\Serialization\SerializerInterface;
 
 /**
@@ -61,26 +60,6 @@ protected function setUp(): void
         );
     }
 
-    public function testItDoesNotPublishIfTheLastStampIsOfTypeRedelivery(): void
-    {
-        $envelope = EnvelopeFactory::create(new RedeliveryStamp(0));
-        $envelopeArray = ['body' => []];
-
-        $this->serializerMock
-            ->expects($this->once())
-            ->method('encode')
-            ->with($envelope)
-            ->willReturn($envelopeArray)
-        ;
-
-        $this->pubSubClientMock
-            ->expects($this->never())
-            ->method('topic')
-        ;
-
-        self::assertSame($envelope, $this->gpsSender->send($envelope));
-    }
-
     public function testItPublishesWithOrderingKey(): void
     {
         $envelope = EnvelopeFactory::create(new OrderingKeyStamp(self::ORDERED_KEY));

Transport/GpsReceiver.php

@@ -87,7 +87,7 @@ public function reject(Envelope $envelope): void
 
             $this->pubSubClient
                 ->subscription($this->gpsConfiguration->getSubscriptionName())
-                ->modifyAckDeadline($gpsReceivedStamp->getGpsMessage(), 0)
+                ->acknowledge($gpsReceivedStamp->getGpsMessage())
             ;
         } catch (Throwable $exception) {
             throw new TransportException($exception->getMessage(), 0, $exception);

Transport/GpsSender.php

@@ -10,7 +10,6 @@
 use PetitPress\GpsMessengerBundle\Transport\Stamp\OrderingKeyStamp;
 use Symfony\Component\Messenger\Envelope;
 use Symfony\Component\Messenger\Exception\TransportException;
-use Symfony\Component\Messenger\Stamp\RedeliveryStamp;
 use Symfony\Component\Messenger\Transport\Sender\SenderInterface;
 use Symfony\Component\Messenger\Transport\Serialization\SerializerInterface;
 
@@ -47,12 +46,6 @@ public function send(Envelope $envelope): Envelope
             throw new TransportException($exception->getMessage(), 0, $exception);
         }
 
-        $redeliveryStamp = $envelope->last(RedeliveryStamp::class);
-        if ($redeliveryStamp instanceof RedeliveryStamp) {
-            // do not try to redeliver, message wasn't acknowledged, so let's Google Pub/Sub do its job with retry policy
-            return $envelope;
-        }
-
         $orderingKeyStamp = $envelope->last(OrderingKeyStamp::class);
         if ($orderingKeyStamp instanceof OrderingKeyStamp) {
             $messageBuilder = $messageBuilder->setOrderingKey($orderingKeyStamp->getOrderingKey());