Don't replay channels which aren't logged

If a channel has no data on it, there's no real need to rename it.  And
if we don't rename it but still open a sender, we can end up consuming
senders for the logger.

Change-Id: I93c89bf046e1a8a6cf770e5b80dcceb1414af707
diff --git a/aos/events/logging/logger.cc b/aos/events/logging/logger.cc
index 7f08f7a..45bda51 100644
--- a/aos/events/logging/logger.cc
+++ b/aos/events/logging/logger.cc
@@ -1298,6 +1298,10 @@
         event_loop,
         logged_configuration()->channels()->Get(logged_channel_index));
 
+    if (channel->logger() == LoggerConfig::NOT_LOGGED) {
+      continue;
+    }
+
     message_bridge::NoncausalOffsetEstimator *filter = nullptr;
     RemoteMessageSender *remote_timestamp_sender = nullptr;
 
diff --git a/aos/events/logging/logger_test.cc b/aos/events/logging/logger_test.cc
index 56c3bb0..f57f129 100644
--- a/aos/events/logging/logger_test.cc
+++ b/aos/events/logging/logger_test.cc
@@ -30,7 +30,7 @@
 constexpr std::string_view kSingleConfigSha1(
     "bc8c9c2e31589eae6f0e36d766f6a437643e861d9568b7483106841cf7504dea");
 constexpr std::string_view kConfigSha1(
-    "f59be0b208c3feab512abac12720b53166303b382b39806e2beeb46e3b9d2a4a");
+    "47511a1906dbb59cf9f8ad98ad08e568c718a4deb204c8bbce81ff76cef9095c");
 
 class LoggerTest : public ::testing::Test {
  public:
diff --git a/aos/events/logging/multinode_pingpong.json b/aos/events/logging/multinode_pingpong.json
index 9b502cf..6a93452 100644
--- a/aos/events/logging/multinode_pingpong.json
+++ b/aos/events/logging/multinode_pingpong.json
@@ -89,12 +89,14 @@
       "name": "/pi1/aos/remote_timestamps/pi2",
       "type": "aos.message_bridge.RemoteMessage",
       "logger": "NOT_LOGGED",
+      "num_senders": 2,
       "source_node": "pi1"
     },
     {
       "name": "/pi2/aos/remote_timestamps/pi1",
       "type": "aos.message_bridge.RemoteMessage",
       "logger": "NOT_LOGGED",
+      "num_senders": 2,
       "source_node": "pi2"
     },
     /* Forwarded to pi2 */