data/libxbps.pc.in: no need to link to proplib anymore.
data/libxbps.pc.in: no need to link to proplib anymore.

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