appliance: remove hash package (#62151)

Nothing was reading the hash value. createOrUpdateObject() in
kubernetes.go contains logic to compare an arbitrary config element to a
standard config hash annotation, which supersedes this package for now.

Author: Craig Furman

internal/appliance/BUILD.bazel

@@ -12,7 +12,6 @@ go_library(
     importpath = "github.com/sourcegraph/sourcegraph/internal/appliance",
     visibility = ["//:__subpackages__"],
     deps = [
-        "//internal/appliance/hash",
         "//internal/k8s/resource/container",
         "//internal/k8s/resource/deployment",
         "//internal/k8s/resource/pod",

internal/appliance/hash/BUILD.bazel

@@ -17,8 +17,6 @@ import (
 	"sigs.k8s.io/yaml"
 
 	"github.com/sourcegraph/sourcegraph/lib/errors"
-
-	"github.com/sourcegraph/sourcegraph/internal/appliance/hash"
 )
 
 const (
@@ -48,8 +46,6 @@ func (r *Reconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Resu
 		return ctrl.Result{}, err
 	}
 
-	applianceSpec.Labels = hash.SetTemplateHashLabel(applianceSpec.Labels, applianceSpec.Data)
-
 	// TODO place holder code until we get the configmap spec'd out and working'
 	data, ok := applianceSpec.Data["spec"]
 	if !ok {