Fix streamer desynchornization caused by streamer debugging patch

it turns out I lost one hunk in the patch disabling extra streaming
which causes streamer to go out of sync in the case non-trivial scc
containing the node being streamed appears in local stream (which seems
quite rare since it does not happen during bootstrap).

2020-05-29  Jan Hubicka  <hubicka@ucw.cz>

	PR lto/95362
	* lto-streamer-out.c (lto_output_tree): Disable redundant streaming.