pdf: fix route

Signed-off-by: Rodrigo Bertoldo de Sousa Martins <rodrigo.sousa.577@gmail.com>

src/types/express.d.ts

@@ -1,5 +1,3 @@
-import { Request } from 'express';
-
 declare global {
   namespace Express {
     interface Request {
@@ -11,3 +9,5 @@ declare global {
     }
   }
 }
+
+export {};