As of SDDM release 0.16.0 it advised to use /etc/sddm.conf.d/ as the directory for user settings.
This patch aims to achieve it by saving in that very same directory under the filename "kde_settings.conf".
It must also remove identical entries from the old "sddm.conf" file because SDDM will simply load them instead of new user set values.
BUG: 386241
FIXED-IN: 5.17