Removing unused packages from travis conf

Author: akerouanton

.travis.yml

@@ -11,6 +11,6 @@ before_install:
  - sudo apt-get install -y python-software-properties
  - sudo add-apt-repository -y ppa:ubuntu-lxc/daily
  - sudo apt-get update -y
- - sudo apt-get install -y liblxc1 lxc lxc-dbg lxc-dev lxc-templates lxc-tests lxctl python3-lxc
+ - sudo apt-get install -y liblxc1
 script:
  - bundle exec rake clean package