partial revert of temporary grpc-only EnvoyFilter (opendatahub-io#931)

This partially reverts commit 48e0b8b and removes the corresponding FeatureTracker.

Related: RHOAIENG-165, opendatahub-io#888
(cherry picked from commit 562d09c)

components/kserve/servicemesh_setup.go

@@ -66,13 +66,6 @@ func (k *Kserve) defineServiceMeshFeatures(ctx context.Context, cli client.Clien
 			fmt.Println("WARN: Authorino operator is not installed on the cluster, skipping authorization capability")
 		}
 
-		return registry.Add(feature.Define("kserve-temporary-fixes").
-			ManifestsLocation(Resources.Location).
-			Manifests(
-				path.Join(Resources.ServiceMeshDir, "grpc-envoyfilter-temp-fix.tmpl.yaml"),
-			).
-			Managed().
-			WithData(servicemesh.FeatureData.ControlPlane.Define(dscispec).AsAction()),
-		)
+		return nil
 	}
 }

pkg/upgrade/upgrade.go

@@ -25,6 +25,7 @@ import (
 
 	dscv1 "github.com/opendatahub-io/opendatahub-operator/v2/apis/datasciencecluster/v1"
 	dsciv1 "github.com/opendatahub-io/opendatahub-operator/v2/apis/dscinitialization/v1"
+	featuresv1 "github.com/opendatahub-io/opendatahub-operator/v2/apis/features/v1"
 	infrav1 "github.com/opendatahub-io/opendatahub-operator/v2/apis/infrastructure/v1"
 	"github.com/opendatahub-io/opendatahub-operator/v2/components"
 	"github.com/opendatahub-io/opendatahub-operator/v2/components/codeflare"
@@ -249,6 +250,10 @@ func CleanupExistingResource(ctx context.Context, cli client.Client, platform cl
 	// Handling for dashboard OdhApplication Jupyterhub CR, see jira #443
 	multiErr = multierror.Append(multiErr, removOdhApplicationsCR(ctx, cli, gvk.OdhApplication, "jupyterhub", dscApplicationsNamespace))
 
+	// cleanup for github.com/opendatahub-io/pull/888
+	deprecatedFeatureTrackers := []string{dscApplicationsNamespace + "-kserve-temporary-fixes"}
+	multiErr = multierror.Append(multiErr, deleteDeprecatedResources(ctx, cli, dscApplicationsNamespace, deprecatedFeatureTrackers, &featuresv1.FeatureTrackerList{}))
+
 	// Handling for dashboard OdhDocument Jupyterhub CR, see jira #443 comments
 	odhDocJPH := getJPHOdhDocumentResources(
 		dscApplicationsNamespace,