e2e: simplify the test for DirectToGameServer PodPolicy

Can't find a good way to send UDP traffic directly to a pod. This is not something that
k8s does out of the box and requires a product like Calico or similar that uses BGP to
provide direct access to pods. Removing the udp call and making the test much simpler

test/e2e/gameserver_test.go

@@ -862,17 +862,12 @@ func TestGameServerDirectToGameServerPort(t *testing.T) {
 		assert.FailNow(t, "Could not get a GameServer ready", err.Error())
 	}
 
+	// To test sending UDP traffic directly to a pod, a product like Calico which uses BGP is needed
+	// so this only tests that the port is set correctly.
 	port := readyGs.Spec.Ports[0]
 	assert.Equal(t, agonesv1.DirectToGameServer, port.PortPolicy)
 	assert.Empty(t, port.HostPort)
 	assert.EqualValues(t, 7777, port.ContainerPort)
-
-	reply, err := framework.SendGameServerUDP(t, readyGs, "Hello World !")
-	if err != nil {
-		t.Fatalf("Could ping GameServer: %v", err)
-	}
-
-	assert.Equal(t, "ACK: Hello World !\n", reply)
 }
 
 func TestGameServerTcpProtocol(t *testing.T) {