[Cleanup] Add missing #include. Remove useless ones.

This CL is the result of running include-what-you-use tool on part
of the code base (audio target and dependencies) plus manual fixes.

bug: webrtc:8311
Change-Id: I277d281ce943c3ecc1bd45fd8d83055931743604
Reviewed-on: https://webrtc-review.googlesource.com/c/106280
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25311}
diff --git a/call/call_config.cc b/call/call_config.cc
index d3425aa..b149c88 100644
--- a/call/call_config.cc
+++ b/call/call_config.cc
@@ -10,6 +10,8 @@
 
 #include "call/call_config.h"
 
+#include "rtc_base/checks.h"
+
 namespace webrtc {
 
 CallConfig::CallConfig(RtcEventLog* event_log) : event_log(event_log) {