server-* suites should not enable/run webserver or check classicui OK
server-* suites should not enable/run webserver or check classicui OK

Icinga2 ClassicUI and Icingaweb2 disabled by default. So there is no
need to set-up apache2/httpd server, unless one of web-ui explicitly
enabled.

Also, according to serverspec documentation, 'os[:family]' wouldn't
return 'centos', but 'redhat'.

vkhatri/chef-icinga2-1,vkhatri/chef-icinga2-1,vkhatri/chef-icinga2-1,Icinga/chef-icinga2,Icinga/chef-icinga2,Icinga/chef-icinga2