http2: more stream-oriented data, stream ID 0 is for connections

lib/transfer.c

@@ -317,8 +317,7 @@ static int data_pending(const struct connectdata *conn)
        TRUE. The thing is if we read everything, then http2_recv won't
        be called and we cannot signal the HTTP/2 stream has closed. As
        a workaround, we return nonzero here to call http2_recv. */
-    ((conn->handler->protocol&PROTO_FAMILY_HTTP) && conn->httpversion == 20 &&
-     conn->proto.httpc.closed);
+    ((conn->handler->protocol&PROTO_FAMILY_HTTP) && conn->httpversion == 20);
 #else
     Curl_ssl_data_pending(conn, FIRSTSOCKET);
 #endif