Travis CI updates: Removing Node.js v6 from allowed failures since it is passing now. Removing extra ls output.

Author: arithmetric

.travis.yml

@@ -17,13 +17,6 @@ env:
   - NVM_NODE_VERSION="5" GDT_DRUPAL_CORE="8" GDT_TEST_URL="http://127.0.0.1:8080/core/misc/drupal.js" CXX=g++-4.8
   - NVM_NODE_VERSION="6" GDT_DRUPAL_CORE="8" GDT_TEST_URL="http://127.0.0.1:8080/core/misc/drupal.js" CXX=g++-4.8
 matrix:
-  allow_failures:
-    - php: 5.5
-      env: NVM_NODE_VERSION="6" GDT_DRUPAL_CORE="8" GDT_TEST_URL="http://127.0.0.1:8080/core/misc/drupal.js" CXX=g++-4.8
-    - php: 5.6
-      env: NVM_NODE_VERSION="6" GDT_DRUPAL_CORE="8" GDT_TEST_URL="http://127.0.0.1:8080/core/misc/drupal.js" CXX=g++-4.8
-    - php: 7
-      env: NVM_NODE_VERSION="6" GDT_DRUPAL_CORE="8" GDT_TEST_URL="http://127.0.0.1:8080/core/misc/drupal.js" CXX=g++-4.8
   exclude:
     - php: 7
       env: NVM_NODE_VERSION="4" GDT_DRUPAL_CORE="7" GDT_TEST_URL="http://127.0.0.1:8080/misc/drupal.js" CXX=g++-4.8
@@ -37,7 +30,6 @@ install:
   - npm install -g grunt-cli@^1.0.0
   - npm install -g mocha
   - npm install
-  - ls -lRa
 script:
   - echo "Code checkout disk usage"; du -chs .
   - npm run lint