Delete RtcEventLogFactory factory as now unused

Bug: webrtc:10206, webrtc:10284
Change-Id: I34fa780f566b52e375ec625bf0d5d02c505d9912
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/143782
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28400}
diff --git a/examples/objcnativeapi/objc/objc_call_client.mm b/examples/objcnativeapi/objc/objc_call_client.mm
index 294f081..3d07cd0 100644
--- a/examples/objcnativeapi/objc/objc_call_client.mm
+++ b/examples/objcnativeapi/objc/objc_call_client.mm
@@ -21,8 +21,8 @@
 #include "api/audio_codecs/builtin_audio_decoder_factory.h"
 #include "api/audio_codecs/builtin_audio_encoder_factory.h"
 #include "api/peer_connection_interface.h"
+#include "api/rtc_event_log/rtc_event_log_factory.h"
 #include "api/task_queue/default_task_queue_factory.h"
-#include "logging/rtc_event_log/rtc_event_log_factory.h"
 #include "media/engine/webrtc_media_engine.h"
 #include "modules/audio_processing/include/audio_processing.h"
 #include "sdk/objc/native/api/video_capturer.h"