no need to use get_task_dict

lm_eval/evaluator.py

@@ -119,7 +119,7 @@ def simple_evaluate(
             + ".db",
         )
 
-    task_dict = lm_eval.tasks.get_task_dict(tasks)
+    task_dict = tasks
     for task_name in task_dict.keys():
         task_obj = task_dict[task_name]
         if type(task_obj) == tuple: