Delete PeerConnectionInterface::BitrateParameters

Replaced by the api struct BitrateSettings, added in
https://webrtc-review.googlesource.com/74020

Bug: None
Change-Id: I8b50b32f5c7a8918fad675904d913a21fd905274
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/177665
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Taylor <deadbeef@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31714}

api/test/peerconnection_quality_test_fixture.h

@@ -40,7 +40,6 @@
 #include "api/video_codecs/video_encoder.h"
 #include "api/video_codecs/video_encoder_factory.h"
 #include "media/base/media_constants.h"
-#include "rtc_base/deprecation.h"
 #include "rtc_base/network.h"
 #include "rtc_base/rtc_certificate_generator.h"
 #include "rtc_base/ssl_certificate.h"
@@ -336,9 +335,6 @@ class PeerConnectionE2EQualityTestFixture {
     // applied to all summed RTP streams for this peer.
     virtual PeerConfigurer* SetBitrateSettings(
         BitrateSettings bitrate_settings) = 0;
-    RTC_DEPRECATED
-    virtual PeerConfigurer* SetBitrateParameters(
-        PeerConnectionInterface::BitrateParameters bitrate_params) = 0;
   };
 
   // Contains configuration for echo emulator.