Remove log line that states that FlexFEC is disabled.

This log line adds no value, since the enable state of the feature can
already be deduced from the list of field trials. Instead, this log
line only contributes log spam in calls where `SetRemoteContent` is
called often.

Bug: chromium:1177690
Change-Id: Icafb537de9388df5475919432b3c99f28170e7de
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/207428
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33267}
diff --git a/media/engine/webrtc_video_engine.cc b/media/engine/webrtc_video_engine.cc
index 1f93be6..d402b5c 100644
--- a/media/engine/webrtc_video_engine.cc
+++ b/media/engine/webrtc_video_engine.cc
@@ -817,7 +817,6 @@
 
   // Never enable sending FlexFEC, unless we are in the experiment.
   if (!IsEnabled(call_->trials(), "WebRTC-FlexFEC-03")) {
-    RTC_LOG(LS_INFO) << "WebRTC-FlexFEC-03 field trial is not enabled.";
     for (VideoCodecSettings& codec : negotiated_codecs)
       codec.flexfec_payload_type = -1;
   }