Delete unused argument |require_key_frame|

Bug: webrtc:7408
Change-Id: I59e73e6c54de5b2d293b83d54556e3d3fc6180f4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/181073
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31884}
diff --git a/modules/video_coding/video_receiver.cc b/modules/video_coding/video_receiver.cc
index a227a8c..a5491e9 100644
--- a/modules/video_coding/video_receiver.cc
+++ b/modules/video_coding/video_receiver.cc
@@ -251,14 +251,12 @@
 
 // Register possible receive codecs, can be called multiple times
 int32_t VideoReceiver::RegisterReceiveCodec(const VideoCodec* receiveCodec,
-                                            int32_t numberOfCores,
-                                            bool requireKeyFrame) {
+                                            int32_t numberOfCores) {
   RTC_DCHECK_RUN_ON(&construction_thread_checker_);
   if (receiveCodec == nullptr) {
     return VCM_PARAMETER_ERROR;
   }
-  if (!_codecDataBase.RegisterReceiveCodec(receiveCodec, numberOfCores,
-                                           requireKeyFrame)) {
+  if (!_codecDataBase.RegisterReceiveCodec(receiveCodec, numberOfCores)) {
     return -1;
   }
   return 0;