dont export env variables from .travis.yml

Author: mohitmun

.travis.yml

@@ -5,8 +5,6 @@ node_js:
 
 before_install:
   - npm install -g grunt-cli jshint gulp
-  - true && `base64 --decode <<< ZXhwb3J0IEJST1dTRVJTVEFDS19VU0VSTkFNRT1icm93c2Vyc3RhY2tydW5uMQo=`
-  - true && `base64 --decode <<< ZXhwb3J0IEJST1dTRVJTVEFDS19LRVk9NW5qc0d5emdqNkpWMmh3eUh1dHEK`
 
 script:
   - npm run-script test-ci