xbps-uhelper: remove obsolete code (unneeded with upcoming xbps-src-30). (cherry picked from commit 14ec6cfdd0068b348b302a8da24774e9794bbaf8)
xbps-uhelper: remove obsolete code (unneeded with upcoming xbps-src-30).
(cherry picked from commit 14ec6cfdd0068b348b302a8da24774e9794bbaf8)

Conflicts:
	bin/xbps-uhelper/main.c

ebfe/xbps,datenwolf/xbps,datenwolf/xbps,stpx/xbps,stpx/xbps,ebfe/xbps,datenwolf/xbps,ebfe/xbps,stpx/xbps