Removing lxc daily ppa from travis build for ensuring that the ubuntu package is used.

.travis.yml

@@ -5,12 +5,11 @@ rvm:
   - 2.1.0
 branches:
   only:
-    - master
+    - 1.1.x
 before_install:
   - sudo apt-get update -y
   - 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 liblxc0 lxc lxc-dbg lxc-dev lxc-templates lxc-tests lxctl python3-lxc
+  - sudo apt-get install -y liblxc0
 script:
   - bundle exec rake clean package