remove unused params from GCP objectStorageAdapter

Signed-off-by: Steve Kriss <steve@heptio.com>

pkg/cloudprovider/gcp/object_storage_adapter.go

@@ -26,9 +26,7 @@ import (
 )
 
 type objectStorageAdapter struct {
-	project string
-	zone    string
-	gcs     *storage.Service
+	gcs *storage.Service
 }
 
 var _ cloudprovider.ObjectStorageAdapter = &objectStorageAdapter{}

pkg/cloudprovider/gcp/storage_adapter.go

@@ -51,9 +51,7 @@ func NewStorageAdapter(project string, zone string) (cloudprovider.StorageAdapte
 
 	return &storageAdapter{
 		objectStorage: &objectStorageAdapter{
-			gcs:     gcs,
-			project: project,
-			zone:    zone,
+			gcs: gcs,
 		},
 		blockStorage: &blockStorageAdapter{
 			gce:     gce,