remove benchmarks from readme

Readme.md

@@ -66,40 +66,6 @@ app.listen(3000);
 $ make test
 ```
 
-## Benchmarks
-
-  If you like silly benchmarks, here's the requests per second using
-  [wrk](https://github.com/wg/wrk) 3.x on my MBP.
-
-```
-1 middleware
-8367.03
-
-5 middleware
-8074.10
-
-10 middleware
-7526.55
-
-15 middleware
-7399.92
-
-20 middleware
-7055.33
-
-30 middleware
-6460.17
-
-50 middleware
-5671.98
-
-100 middleware
-4349.37
-```
-
-  With __50__ middleware (likely much more than you'll need), that's __340,260__ requests per minute, and __20,415,600__ per hour,  and over __440 million__ per day, so unless you're a Facebook and can't manage to spin up more
-  than one process to scale horizontally you'll be fine ;)
-
 ## Authors
 
   - [TJ Holowaychuk](https://github.com/visionmedia)