Delete classes EventFactory and EventFactoryImpl.

Followup to cl https://webrtc-review.googlesource.com/c/src/+/107890

Bug: webrtc:3380
Change-Id: Iac4389186be3ffbc55e53e18aa302465cd771da4
Reviewed-on: https://webrtc-review.googlesource.com/c/110140
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25559}
diff --git a/modules/video_coding/video_coding_impl.cc b/modules/video_coding/video_coding_impl.cc
index a6e8e83..17481bc 100644
--- a/modules/video_coding/video_coding_impl.cc
+++ b/modules/video_coding/video_coding_impl.cc
@@ -27,10 +27,6 @@
 #include "system_wrappers/include/clock.h"
 
 namespace webrtc {
-EventWrapper* EventFactoryImpl::CreateEvent() {
-  return EventWrapper::Create();
-}
-
 namespace vcm {
 
 int64_t VCMProcessTimer::Period() const {
@@ -81,7 +77,6 @@
 class VideoCodingModuleImpl : public VideoCodingModule {
  public:
   VideoCodingModuleImpl(Clock* clock,
-                        EventFactory* /* event_factory */,
                         NackSender* nack_sender,
                         KeyFrameRequestSender* keyframe_request_sender)
       : VideoCodingModule(),
@@ -219,7 +214,7 @@
 // new jitter buffer is in place.
 VideoCodingModule* VideoCodingModule::Create(Clock* clock) {
   RTC_DCHECK(clock);
-  return new VideoCodingModuleImpl(clock, nullptr, nullptr, nullptr);
+  return new VideoCodingModuleImpl(clock, nullptr, nullptr);
 }
 
 }  // namespace webrtc