[ci] Ommit installing ubuntu security updates

dist/ci/obs_testsuite_travis_install.sh

@@ -9,13 +9,5 @@ sudo chmod a+w /etc/apt/sources.list.d
 echo 'deb http://download.opensuse.org/repositories/OBS:/Server:/Unstable/xUbuntu_12.04 /' > /etc/apt/sources.list.d/opensuse.list
 sudo apt-get update -o Dir::Etc::sourcelist="sources.list.d/opensuse.list" -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
 
-# Install ubuntu security updates
-cat > /etc/apt/sources.list.d/security.list << EOF
-deb http://security.ubuntu.com/ubuntu precise-security main restricted
-deb http://security.ubuntu.com/ubuntu precise-security universe
-deb http://security.ubuntu.com/ubuntu precise-security multiverse
-EOF
-sudo apt-get update -o Dir::Etc::sourcelist="sources.list.d/security.list" -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
-
 # Install the dependencies of the backend
 sudo apt-get install --force-yes travis-deps libxml-parser-perl libfile-sync-perl python-rpm python-urlgrabber python-sqlitecachec python-libxml2 createrepo libbssolv-perl sphinxsearch libjson-xs-perl libxml-simple-perl libgd-gd2-perl