Remove environment variable SYMFONY_DEPRECATIONS_HELPER with value 'weak'

Author: nicwortel

.travis.yml

@@ -1,10 +1,3 @@
-#
-# This file has been generated by the Ibuildings QA-Tools
-#
-# Any custom Travis-ci configuration be added here
-# This file should be added to your project repository
-#
-
 language: php
 
 sudo: false
@@ -17,9 +10,6 @@ cache:
   directories:
     - ~/.composer
 
-env:
-  - SYMFONY_DEPRECATIONS_HELPER=weak
-
 before_script:
   - phpenv config-add .travis.php.ini
   - composer self-update
@@ -28,7 +18,6 @@ before_script:
 script:
   - ant
 
-
 branches:
   only:
     - master