Update SEND_AUTH.md

doc/SEND_AUTH.md

@@ -6,12 +6,3 @@ We'll get a `code` by sending auth:
          scope: "snsapi_userinfo", state: "wechat_sdk_demo_test")；
 ```
 Getting `access_token` is not supported by `fluwx`.
-
-### Return
- The return value of `fluwx.share(model)` is a `Map`：
-```dart
-    {
-       "platform":"Android",//or iOS
-       result:true //or false，depending on the result of WXApi.sendRequest()
-     }
-```