package/kodi-screensaver-planestate: remove package

package/kodi-screensaver-planestate: remove package

This package is incompatible with Kodi 18.x, configure is broken:

CMake Error at output/host/x86_64-buildroot-linux-uclibc/sysroot/usr/share/kodi/cmake/AddonHelpers.cmake:197 (message):
  "@ADDON_DEPENDS@" not found in addon.xml.in.

This package is also not part of the upstream binary repo:
https://github.com/xbmc/repo-binary-addons

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>