Remove phpunit

Author: shabbyrobe

composer.json

@@ -16,9 +16,6 @@
     "require": {
         "php": ">=5.3.0"
     },
-    "require-dev": {
-        "phpunit/phpunit": "4.1.*"
-    },
     "autoload": {
         "classmap": ["src/docopt.php"]
     }