RevEng: Remove explicit generics from relationship calls

[rowanmiller]

We currently explicitly specify the generic argument for the first part of the relationship but this isn't needed since it is inferred from the navigation property (i.e. <Category> can be removed from the following example).

            modelBuilder.Entity<Product>(entity =>
                {
                    entity.Reference<Category>(d => d.Category).InverseCollection(p => p.Product);
                }
            );

[lajones]

Fixed with commit 1b07c35.