reverted mistake

src/peer_connection.cpp

@@ -5103,7 +5103,6 @@ namespace libtorrent
 				int picker_count = t->picker().num_peers(b);
 				if (!t->picker().is_downloaded(b))
 					TORRENT_ASSERT(picker_count == count);
-#error when this assert fails, picker_count equals count_with_timeouts, but count is less
 			}
 		}
 #ifdef TORRENT_EXPENSIVE_INVARIANT_CHECKS