message: removed more unused type
diff: @@ -19,9 +19,6 @@ type DocumentPreParallelFn<T> = (this: TypegooseDoc<T>, next: HookNextFn, done:
  type SimplePreSerialFn<T> = (next: HookNextFn) => void;
  type SimplePreParallelFn<T> = (next: HookNextFn, done: PreDoneFn) => void;
  -// this depends on the hook method
  -type PostResult<T> = TypegooseDoc<T> | TypegooseDoc<T>[] | number;
  -
  type DocumentPostFn<T> = (this: TypegooseDoc<T>, doc: TypegooseDoc<T>, next?: HookNextFn) => void;
  type ModelPostFn<T> = (this: any, result: any, next?: HookNextFn) => void;
  