xbps_repository_find_pkg_deps: simplify even more and remove dead code.
xbps_repository_find_pkg_deps: simplify even more and remove dead code.

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