Do not increase memeory limit on HHVM

Author: XWB

.travis.yml

@@ -27,10 +27,10 @@ matrix:
   fast_finish: true
 
 before_script:
-  - phpenv config-add travis.php.ini
   - /usr/share/elasticsearch/bin/elasticsearch -v
   - sudo /usr/share/elasticsearch/bin/plugin -install elasticsearch/elasticsearch-mapper-attachments/2.0.0
   - sudo service elasticsearch restart
+  - if [ "$TRAVIS_PHP_VERSION" != "hhvm" ]; then phpenv config-add travis.php.ini; fi;
   - sh -c 'if [ "$TRAVIS_PHP_VERSION" != "hhvm" ]; then echo "extension = mongo.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini; fi;'
   - sh -c 'if [ "$SYMFONY_VERSION" != "" ]; then composer require --dev --no-update symfony/symfony=$SYMFONY_VERSION; fi;'
   - if [ "$DEPENDENCIES" = "dev" ]; then perl -pi -e 's/^}$/,"minimum-stability":"dev"}/' composer.json; fi;