stream_base: remove TODO

Author: indutny

src/stream_base.h

@@ -56,8 +56,6 @@ class ShutdownWrap : public ReqWrap<uv_shutdown_t>,
 class WriteWrap: public ReqWrap<uv_write_t>,
                  public StreamReq<WriteWrap> {
  public:
-  // TODO(trevnorris): WrapWrap inherits from ReqWrap, which I've globbed
-  // into the same provider. How should these be broken apart?
   WriteWrap(Environment* env,
             v8::Local<v8::Object> obj,
             StreamBase* wrap,