refactor(import): remove unused detectAssetScanning method

The private method had no callers. Asset scanning detection is already
handled in import-config-handler.ts via config.planStatus['assetsScan'],
which feeds assetScanningEnabled and skipAssetsPublish. Keeping a second
detection path with a different data source risked drift, and its bare
catch reported "not enabled" on any API error.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: naman-contentstack

packages/contentstack-import/src/import/module-importer.ts

@@ -194,16 +194,6 @@ class ModuleImporter {
       log.error(`Audit failed with following error. ${error}`, this.importConfig.context);
     }
   }
-
-  private async detectAssetScanning(orgUid: string): Promise<boolean> {
-    try {
-      const orgDetails = await this.managementAPIClient.organization(orgUid).fetch({ include_plan: true });
-      const features: Array<{ uid: string; enabled?: boolean }> = orgDetails?.plan?.features || [];
-      return features.some((f) => (f.uid === 'assetsScan' || f.uid === 'amAssetsScan') && f.enabled === true);
-    } catch {
-      return false;
-    }
-  }
 }
 
 export default ModuleImporter;