Removed obsolete help builder project file.
Removed obsolete help builder project file.

oconics/Autofac,twsouthwick/Autofac,autofac/Autofac,LexxFedoroff/Autofac,liujunhua/Autofac,zmaruo/Autofac,neoe1984/https-github.com-autofac-Autofac,zjmpds/Autofac,csantero/Autofac,pagebrooks/Autofac,jruckert/Autofac,oconics/Autofac,jango2015/Autofac,csantero/Autofac,laizhan/autofac,LexxFedoroff/Autofac,neoe1984/https-github.com-autofac-Autofac,laizhan/autofac,laizhan/autofac,laizhan/autofac,onovotny/Autofac,jruckert/Autofac,twsouthwick/Autofac,twsouthwick/Autofac,SeriaWei/Autofac,lijianguang/Autofac,twsouthwick/Autofac,twsouthwick/Autofac,liujunhua/Autofac,onovotny/Autofac,pagebrooks/Autofac,SeriaWei/Autofac