hy_query_filter_requires() internally converts to a reldep.
hy_query_filter_requires() internally converts to a reldep.

Allows me to simplify compute() a bit and remove filter_requires_str().

rpm-software-management/hawkey,ignatenkobrain/hawkey,jsilhan/hawkey,Conan-Kudo/hawkey,megaumi/hawkey,Conan-Kudo/hawkey,ignatenkobrain/hawkey,rholy/hawkey,ignatenkobrain/hawkey,yavor-atanasov/hawkey,mluscon/hawkey,jsilhan/hawkey,mizdebsk/hawkey,rpm-software-management/hawkey,rpm-software-management/hawkey,ignatenkobrain/hawkey,mluscon/hawkey,mizdebsk/hawkey,mluscon/hawkey,megaumi/hawkey,jsilhan/hawkey,cgwalters/hawkey,Conan-Kudo/hawkey,MichaelMraka/hawkey,MichaelMraka/hawkey,mizdebsk/hawkey,MichaelMraka/hawkey,cgwalters/hawkey,cgwalters/hawkey,megaumi/hawkey,yavor-atanasov/hawkey,rholy/hawkey,yavor-atanasov/hawkey,mizdebsk/hawkey,rpm-software-management/hawkey,MichaelMraka/hawkey,rholy/hawkey,Conan-Kudo/hawkey,yavor-atanasov/hawkey,rholy/hawkey,mluscon/hawkey,jsilhan/hawkey,cgwalters/hawkey,megaumi/hawkey