removed Doctrine cache bundle from deps

Author: fabpot

composer.json

@@ -13,7 +13,6 @@
     "require": {
         "php": ">=5.5.9",
         "doctrine/doctrine-bundle": "^1.6",
-        "doctrine/doctrine-cache-bundle": "^1.2",
         "doctrine/orm": "^2.5",
         "incenteev/composer-parameter-handler": "^2.0",
         "sensio/distribution-bundle": "^5.0",