Remove edge weights
Remove edge weights

Vestigial function from layout optimization. no longer useful.

sorgerlab/indra,bgyori/indra,johnbachman/belpy,johnbachman/indra,johnbachman/belpy,sorgerlab/belpy,johnbachman/indra,pvtodorov/indra,sorgerlab/indra,johnbachman/indra,sorgerlab/belpy,pvtodorov/indra,pvtodorov/indra,pvtodorov/indra,johnbachman/belpy,sorgerlab/belpy,sorgerlab/indra,bgyori/indra,bgyori/indra