try to speed up

.travis.yml

@@ -36,7 +36,7 @@ before_install:
 
 install:
     - cd ..
-    - sudo apt-get -y install nodejs python3-jinja2 python3-setuptools apache2 libapache2-mod-fastcgi firefox chromium-browser curl
+    - sudo apt-get -y install python3-jinja2 python3-setuptools apache2 libapache2-mod-fastcgi firefox curl
     - export CHROME_BIN=/usr/bin/chromium-browser
     - sudo easy_install3 requests
     - sudo easy_install3 ocdev