Remove audio/video distinction for probe packets.

webrtc/modules/congestion_controller/congestion_controller.cc

Index: webrtc/modules/congestion_controller/congestion_controller.cc
diff --git a/webrtc/modules/congestion_controller/congestion_controller.cc b/webrtc/modules/congestion_controller/congestion_controller.cc
index 5767448a5f7bf711a24ef214ea47d5f5cac18f20..9f95fc3a1f96837366e041ffdeb0f841ef581c21 100644
--- a/webrtc/modules/congestion_controller/congestion_controller.cc
+++ b/webrtc/modules/congestion_controller/congestion_controller.cc
@@ -47,11 +47,10 @@ class WrappingBitrateEstimator : public RemoteBitrateEstimator {
 
   void IncomingPacket(int64_t arrival_time_ms,
                       size_t payload_size,
-                      const RTPHeader& header,
-                      bool was_paced) override {
+                      const RTPHeader& header) override {
     CriticalSectionScoped cs(crit_sect_.get());
     PickEstimatorFromHeader(header);
-    rbe_->IncomingPacket(arrival_time_ms, payload_size, header, was_paced);
+    rbe_->IncomingPacket(arrival_time_ms, payload_size, header);
   }
 
   void Process() override {