Remove use of serviceSpecIsUpdated

It's no longer needed with the latest swarmkit changes

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
diff --git a/integration/service/update_test.go b/integration/service/update_test.go
index 4c1b94f..0fdc238 100644
--- a/integration/service/update_test.go
+++ b/integration/service/update_test.go
@@ -32,7 +32,7 @@
 	service.Spec.Labels["foo"] = "bar"
 	_, err := cli.ServiceUpdate(ctx, serviceID, service.Version, service.Spec, types.ServiceUpdateOptions{})
 	assert.NilError(t, err)
-	poll.WaitOn(t, serviceSpecIsUpdated(cli, serviceID, service.Version.Index), swarm.ServicePoll)
+	poll.WaitOn(t, serviceIsUpdated(cli, serviceID), swarm.ServicePoll)
 	service = getService(t, cli, serviceID)
 	assert.Check(t, is.DeepEqual(service.Spec.Labels, map[string]string{"foo": "bar"}))
 
@@ -40,21 +40,21 @@
 	service.Spec.Labels["foo2"] = "bar"
 	_, err = cli.ServiceUpdate(ctx, serviceID, service.Version, service.Spec, types.ServiceUpdateOptions{})
 	assert.NilError(t, err)
-	poll.WaitOn(t, serviceSpecIsUpdated(cli, serviceID, service.Version.Index), swarm.ServicePoll)
+	poll.WaitOn(t, serviceIsUpdated(cli, serviceID), swarm.ServicePoll)
 	service = getService(t, cli, serviceID)
 	assert.Check(t, is.DeepEqual(service.Spec.Labels, map[string]string{"foo": "bar", "foo2": "bar"}))
 
 	delete(service.Spec.Labels, "foo2")
 	_, err = cli.ServiceUpdate(ctx, serviceID, service.Version, service.Spec, types.ServiceUpdateOptions{})
 	assert.NilError(t, err)
-	poll.WaitOn(t, serviceSpecIsUpdated(cli, serviceID, service.Version.Index), swarm.ServicePoll)
+	poll.WaitOn(t, serviceIsUpdated(cli, serviceID), swarm.ServicePoll)
 	service = getService(t, cli, serviceID)
 	assert.Check(t, is.DeepEqual(service.Spec.Labels, map[string]string{"foo": "bar"}))
 
 	delete(service.Spec.Labels, "foo")
 	_, err = cli.ServiceUpdate(ctx, serviceID, service.Version, service.Spec, types.ServiceUpdateOptions{})
 	assert.NilError(t, err)
-	poll.WaitOn(t, serviceSpecIsUpdated(cli, serviceID, service.Version.Index), swarm.ServicePoll)
+	poll.WaitOn(t, serviceIsUpdated(cli, serviceID), swarm.ServicePoll)
 	service = getService(t, cli, serviceID)
 	assert.Check(t, is.DeepEqual(service.Spec.Labels, map[string]string{}))
 
@@ -62,7 +62,7 @@
 	service.Spec.Labels["foo"] = "bar"
 	_, err = cli.ServiceUpdate(ctx, serviceID, service.Version, service.Spec, types.ServiceUpdateOptions{})
 	assert.NilError(t, err)
-	poll.WaitOn(t, serviceSpecIsUpdated(cli, serviceID, service.Version.Index), swarm.ServicePoll)
+	poll.WaitOn(t, serviceIsUpdated(cli, serviceID), swarm.ServicePoll)
 	service = getService(t, cli, serviceID)
 	assert.Check(t, is.DeepEqual(service.Spec.Labels, map[string]string{"foo": "bar"}))
 
@@ -217,17 +217,3 @@
 		}
 	}
 }
-
-func serviceSpecIsUpdated(client client.ServiceAPIClient, serviceID string, serviceOldVersion uint64) func(log poll.LogT) poll.Result {
-	return func(log poll.LogT) poll.Result {
-		service, _, err := client.ServiceInspectWithRaw(context.Background(), serviceID, types.ServiceInspectOptions{})
-		switch {
-		case err != nil:
-			return poll.Error(err)
-		case service.Version.Index > serviceOldVersion:
-			return poll.Success()
-		default:
-			return poll.Continue("waiting for service %s to be updated", serviceID)
-		}
-	}
-}