Removed code try to install Wily(15.10) kernel in case of Ubuntu
Trusty(14.04).
Last Openstack version supported on Ubuntu 14.04 is Mitaka.
Hence Ubuntu 14.04 related code can be safely remove from Ansible tasks
since Kolla Newton release.
Co-Authored-By: Duong Ha-Quang <duonghq@vn.fujitsu.com>
Change-Id: Ieca7975a69fb0ba8b49cc522f05e4beca1c2f526