Remove now-redundant 'typings' dir and custom-typings.d.ts
Remove now-redundant 'typings' dir and custom-typings.d.ts

aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore