Removed unneeded apt calls in the TravisCI build

Author: frenck

.travis.yml

@@ -26,8 +26,6 @@ before_install:
   - npm set progress false
 
 install:
-  - sudo apt-get update -qq
-  - sudo apt-get install -y -qq libssh2-1-dev libssh2-php
   - pip install yamllint
   - if ! shellcheck --version ; then
       curl -sSL "${SHELLCHECK_URL}" | tar --exclude 'SHA256SUMS' --strip-components=1 -C "${HOME}/bin" -xjf -;