connman: remove debug.d
xorg: remove debug.d/
xbmc: remove debug.d/
systemd: remove debugconfig.service
systemd: remove var-log-debug.service
xbmc: kodi-cleanlogs.service: always clean old addon logs

TODO: move to busybox, start early
busybox: remove .cache/debug.openelec support
debug-shell: remove .cache/debug.openelec support
scripts/install: remove debug.d support