remove res.statusString

docs/api/response.md

@@ -18,10 +18,6 @@
 
   Get response status. By default, `res.status` is not set unlike node's `res.statusCode` which defaults to `200`.
 
-### res.statusString
-
-  Response status string
-
 ### res.status=
 
   Set response status via numeric code or case-insensitive string:

lib/response.js

@@ -46,17 +46,6 @@ module.exports = {
     return this.res._headers || {};
   },
 
-  /**
-   * Return response status string.
-   *
-   * @return {String}
-   * @api public
-   */
-
-  get statusString() {
-    return http.STATUS_CODES[this.status];
-  },
-
   /**
    * Get response status code.
    *
@@ -444,7 +433,7 @@ module.exports = {
   toJSON: function(){
     return {
       status: this.status,
-      string: this.statusString,
+      string: http.STATUS_CODES[this.status],
       header: this.header
     }
   }