Remove unused DbRefreshStateRow import and logger declaration

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Fredrik Adelöw <freben@gmail.com>

plugins/catalog-backend/src/database/operations/stitcher/performStitching.test.ts

@@ -315,8 +315,6 @@ it.each(databases.eachSupportedId())(
 describe.each(databases.eachSupportedId())(
   'performStitching edge cases, %p',
   databaseId => {
-    const logger = mockServices.logger.mock();
-
     it('stitches when final_entities row already exists', async () => {
       const knex = await databases.init(databaseId);
       await applyDatabaseMigrations(knex);

plugins/catalog-backend/src/database/operations/stitcher/performStitching.ts

@@ -26,11 +26,7 @@ import { SerializedError } from '@backstage/errors';
 import { Knex } from 'knex';
 import { createHash } from 'node:crypto';
 import stableStringify from 'fast-json-stable-stringify';
-import {
-  DbFinalEntitiesRow,
-  DbRefreshStateRow,
-  DbStitchQueueRow,
-} from '../../tables';
+import { DbFinalEntitiesRow, DbStitchQueueRow } from '../../tables';
 import { buildEntitySearch } from './buildEntitySearch';
 import { markDeferredStitchCompleted } from './markDeferredStitchCompleted';
 import { syncSearchRows } from './syncSearchRows';