Remove 3.3 because of not solved dependencies

Author: 66Ton99

.travis.yml

@@ -5,7 +5,6 @@ php: [5.5,5.6,7.0]
 env:
   - SF_VERSION='~3.1.0'
   - SF_VERSION='~3.2.0'
-  - SF_VERSION='~3.3.0'
 
 before_script:
   - if [ "$COVERAGE" != "true" ] && [ "$TRAVIS_PHP_VERSION" != "hhvm" ]; then phpenv config-rm xdebug.ini; fi