Remove useless image files

Signed-off-by: Aline Manera <alinefm@linux.vnet.ibm.com>
Remove useless jquery files

Kimchi is using the jquery files under ui/libs
So ui/js/jquery-ui.js and ui/js/jquery.min.js can be removed

Signed-off-by: Aline Manera <alinefm@linux.vnet.ibm.com>