Delete topic

-## 1. 话题
-
-**接口:** 
-http://xxxxx/social?appType=2&app_version=5.1.0&client_secret=926666ce819cba1b8c1d9acfaaa879fa&client_type=iphone&method=app.social.getTopics&os_version=9.3.5&postsId=4438&screen_size=320x568&v=7
-
-**请求参数:**
-method=app.social.getTopics
-其它为公共参数
-
-**返回值示例:**
-
-```json
-{
-  "alg": "SALT_MD5",
-  "code": 200,
-  "data": [
-    {
-      "topic": "#无可奈何花无可1何花无可奈何花#",
-      "id": 26
-    },
-    {
-      "topic": "#无可奈何花无可奈何花无可奈何花#",
-      "id": 24
-    }
-  ],
-  "md5": "431a8d2822a3b9e6da0eef9504f807bc",
-  "message": "java操作成功"
-}
-```
-**返回值字段描述:**
-
-|字段|字段类型|默认值|备注|	
-|----|--------|------|----|
-|topic|string||话题名称|
-|id|int||话题ID|