Fix disabling XDebug

Author: scheb

.travis.yml

@@ -9,7 +9,7 @@ cache:
     - vendor
 
 before_install:
-  - if php -v | grep -q 'Xdebug'; then phpenv config-rm xdebug.ini; fi
+  - phpenv config-rm xdebug.ini
   - if [ "$SYMFONY_VERSION" != "" ]; then composer require "symfony/symfony:${SYMFONY_VERSION}" --no-update; fi;
 
 install: