hgweb: remove unused second argument of nextPageVarGet() nextPageVarGet is a function that's used in ajaxScrollInit() to produce URL of the next page. Before f84b01257e06, its second argument previousVal was a number on /graph pages, and the code was simply adding 60 to it and returning the resulting value. Now previousVal can only be a string containing changeset hash, which can't be used the same way (and in fact isn't used in any way).