delete deprecations

Signed-off-by: Emma Indal <emma.indahl@gmail.com>

plugins/search-backend-node/src/IndexBuilder.test.ts

@@ -19,10 +19,11 @@ import { TaskInvocationDefinition, TaskRunner } from '@backstage/backend-tasks';
 import {
   DocumentCollatorFactory,
   DocumentDecoratorFactory,
+  SearchEngine,
 } from '@backstage/plugin-search-common';
 import { Readable, Transform } from 'stream';
 import { IndexBuilder } from './IndexBuilder';
-import { LunrSearchEngine, SearchEngine } from './index';
+import { LunrSearchEngine } from './index';
 
 class TestDocumentCollatorFactory implements DocumentCollatorFactory {
   readonly type: string = 'anything';

plugins/search-backend-node/src/index.ts

@@ -39,8 +39,3 @@ export * from './indexing';
 export * from './test-utils';
 
 export type { ScheduleTaskParameters } from './Scheduler';
-
-/**
- * @deprecated Import from @backstage/plugin-search-common instead
- */
-export type { SearchEngine } from '@backstage/plugin-search-common';