Remove old benchmark scripts

.gitattributes

@@ -1,4 +1,3 @@
-benchmarks export-ignore
 tests export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore

README.md

@@ -29,7 +29,7 @@ To be as flexible as possible, this library comes with a collection of non-block
 
 The recommended way to install is with the [Composer](http://getcomposer.org/) package manager. (See the [Composer installation guide](https://getcomposer.org/doc/00-intro.md) for information on installing and using Composer.)
 
-Run the following command to use Icicle in your project: 
+Run the following command to use Icicle in your project:
 
 ```bash
 composer require icicleio/concurrent
@@ -57,14 +57,6 @@ make
 sudo make install
 ```
 
-##### Benchmarks
-
-A few benchmarks are provided for analysis and study. Can be used to back up implementation decisions, or to measure performance on different platforms or hardware.
-
-```bash
-vendor/bin/athletic -p benchmarks -b vendor/autoload.php
-```
-
 ## Documentation
 
 Concurrent can use either process forking, processes created using `proc_open()`, or true threading to parallelize execution. Threading provides better performance and is compatible with Unix and Windows but requires ZTS (Zend thread-safe) PHP, while forking has no external dependencies but is only compatible with Unix systems.
@@ -138,7 +130,7 @@ Coroutine\create(function () {
 
     $message = (yield $thread->receive()); // Receive from the context.
     yield $thread->join();
-    
+
     print $message . "\n";
 });