This CL removes all usages of our custom ostream << overloads.

This prepares us for removing them altogether.

Bug: webrtc:8982
Change-Id: I66002cc8d4bf0e07925766d568d2498422f0f38e
Reviewed-on: https://webrtc-review.googlesource.com/64142
Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org>
Reviewed-by: Henrik Grunell <henrikg@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22707}
diff --git a/audio/BUILD.gn b/audio/BUILD.gn
index 451708a..3880eab 100644
--- a/audio/BUILD.gn
+++ b/audio/BUILD.gn
@@ -75,6 +75,7 @@
     "../modules/rtp_rtcp",
     "../modules/rtp_rtcp:rtp_rtcp_format",
     "../modules/utility",
+    "../rtc_base:audio_format_to_string",
     "../rtc_base:checks",
     "../rtc_base:rate_limiter",
     "../rtc_base:rtc_base",