Simplify and slim down ipaca_default.ini
    
    * Remove internal stuff from DEFAULT section
    * Remove all non-user modifiable paths
    * Remove OCSP, RA, TKS, TPS sections
    * Remove deprecated options and replace them with current options
    
    Fixes: https://pagure.io/freeipa/issue/5608
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>