removed unused Fake struct (kubernetes-sigs#723)

Signed-off-by: Nir Rozenbaum <[email protected]>

Author: nirrozenbaum

pkg/epp/backend/metrics/fake.go

@@ -24,7 +24,6 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"sigs.k8s.io/controller-runtime/pkg/log"
-	"sigs.k8s.io/gateway-api-inference-extension/api/v1alpha2"
 	logutil "sigs.k8s.io/gateway-api-inference-extension/pkg/epp/util/logging"
 )
 
@@ -84,11 +83,3 @@ func (f *FakePodMetricsClient) SetErr(new map[types.NamespacedName]error) {
 	defer f.errMu.Unlock()
 	f.Err = new
 }
-
-type FakeDataStore struct {
-	Res map[string]*v1alpha2.InferenceModel
-}
-
-func (fds *FakeDataStore) FetchModelData(modelName string) (returnModel *v1alpha2.InferenceModel) {
-	return fds.Res[modelName]
-}