用户一键删除优化

app/enterprise/controller/Friend.php

@@ -333,8 +333,6 @@ class Friend extends BaseController
 
         $chat_identify = chat_identify($uid, $to_user);
         $whereMsg = [
-            ['from_user', '=', $uid],
-            ['to_user', '=', $to_user],
             ['is_group', '=', 0],
             ['chat_identify', '=', $chat_identify]
         ];