remove old alpha instance metadata service

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/backend-plugin-api/src/alpha/InstanceMetadataService.ts

@@ -1,32 +0,0 @@
-/*
- * Copyright 2025 The Backstage Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/** @alpha */
-export type BackendFeatureMeta =
-  | {
-      type: 'plugin';
-      pluginId: string;
-    }
-  | {
-      type: 'module';
-      pluginId: string;
-      moduleId: string;
-    };
-
-/** @alpha */
-export interface InstanceMetadataService {
-  getInstalledFeatures: () => BackendFeatureMeta[];
-}

packages/backend-plugin-api/src/alpha/index.ts

@@ -14,11 +14,6 @@
  * limitations under the License.
  */
 
-export type {
-  BackendFeatureMeta,
-  InstanceMetadataService,
-} from './InstanceMetadataService';
-
 export type {
   ActionsRegistryService,
   ActionsRegistryActionOptions,
@@ -27,8 +22,4 @@ export type {
 
 export type { ActionsService, ActionsServiceAction } from './ActionsService';
 
-export {
-  actionsRegistryServiceRef,
-  actionsServiceRef,
-  instanceMetadataServiceRef,
-} from './refs';
+export { actionsRegistryServiceRef, actionsServiceRef } from './refs';

packages/backend-plugin-api/src/alpha/refs.ts

@@ -16,15 +16,6 @@
 
 import { createServiceRef } from '@backstage/backend-plugin-api';
 
-/**
- * @alpha
- */
-export const instanceMetadataServiceRef = createServiceRef<
-  import('./InstanceMetadataService').InstanceMetadataService
->({
-  id: 'core.instanceMetadata',
-});
-
 /**
  * Service for calling distributed actions
  *