fix(scale_result): 移除不可用的created_at过滤器

app/models/scale_result.rb

@@ -34,7 +34,7 @@ class ScaleResult < ActiveRecord::Base
     weight 2
 
     list do
-      filters [:wx_user,:created_at]
+      filters [:wx_user]
       field :id do
         label 'ID'
       end