Remove CentOS 5.11 testing in kitchen
Remove CentOS 5.11 testing in kitchen

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef-cookbooks/activemq,opscode-cookbooks/activemq,opscode-cookbooks/activemq,chef-cookbooks/activemq