Update api, remove auth requirement for hashtag timeline

app/Http/Controllers/Api/ApiV1Controller.php

@@ -1988,8 +1988,6 @@ class ApiV1Controller extends Controller
      */
     public function timelineHashtag(Request $request, $hashtag)
     {
-        abort_if(!$request->user(), 403);
-
         $this->validate($request,[
           'page'        => 'nullable|integer|max:40',
           'min_id'      => 'nullable|integer|min:0|max:' . PHP_INT_MAX,