log_streamer now eats messages

Change-Id: Iecb454cf3c54b72ab8c1b7a55a65348889d462ad
diff --git a/aos/linux_code/logging/log_streamer.cc b/aos/linux_code/logging/log_streamer.cc
index b6813e9..2fe7c04 100644
--- a/aos/linux_code/logging/log_streamer.cc
+++ b/aos/linux_code/logging/log_streamer.cc
@@ -28,9 +28,8 @@
   printf("starting at %" PRId32 "s%" PRId32 "ns-----------------------------\n",
          now.sec(), now.nsec());
 
-  int index = 0;
   while (true) {
-    const LogMessage *const msg = ReadNext(RawQueue::kBlock, &index);
+    const LogMessage *const msg = ReadNext();
     if (msg == NULL) continue;
 
     internal::PrintMessage(stdout, *msg);