Removing Codeception require

This will be used in each project that loads Codeception

Author: javigomez

composer.json

@@ -15,8 +15,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0",
-        "codeception/codeception": "2.*"
+        "php": ">=5.3.0"
     },
     "require-dev": {
         "codegyre/robo": "^0.5.3",