refactor(FE): Remove unused imports and redundant code

src/services/api/marketing/marketing.ts

@@ -17,12 +17,6 @@ import { formatCurrency, formatDate, formatTitleCase } from '@/lib/helper';
  * 💡 Helper untuk membuat respons dummy
  * @param data Data yang akan dimasukkan ke dalam body respons
  */
-const createDummyResponse = <T>(data: T): BaseApiResponse<T> => ({
-  code: 200,
-  status: 'success',
-  message: 'Data retrieved successfully (MOCK)',
-  data: data,
-});
 
 export class SalesOrderService extends BaseApiService<
   Marketing,
@@ -168,7 +162,7 @@ class MarketingExportService extends BaseApiService<
 
       // triggers download in browser
       XLSX.writeFile(wb, 'marketing.xlsx');
-    } catch (error) {
+    } catch {
       toast.error('Gagal melakukan export marketing! Coba lagi.');
     }
   }