[Cleanup] Add missing #include. Remove useless ones. IWYU part 2.

This is a follow-up to
https://webrtc-review.googlesource.com/c/src/+/106280.
This time the whole code base is covered.
Some files may have not been fixed though, whenever the IWYU tool
was breaking the build.

Bug: webrtc:8311
Change-Id: I2c31f552a87e887d33931d46e87b6208b1e483ef
Reviewed-on: https://webrtc-review.googlesource.com/c/111965
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25830}
diff --git a/modules/video_coding/video_coding_impl.cc b/modules/video_coding/video_coding_impl.cc
index 58397ad..39eccb5 100644
--- a/modules/video_coding/video_coding_impl.cc
+++ b/modules/video_coding/video_coding_impl.cc
@@ -11,17 +11,14 @@
 #include "modules/video_coding/video_coding_impl.h"
 
 #include <algorithm>
-#include <utility>
+#include <memory>
 
 #include "api/video/builtin_video_bitrate_allocator_factory.h"
+#include "api/video/encoded_image.h"
 #include "api/video/video_bitrate_allocator.h"
+#include "api/video/video_bitrate_allocator_factory.h"
 #include "common_types.h"  // NOLINT(build/include)
-#include "common_video/libyuv/include/webrtc_libyuv.h"
-#include "modules/video_coding/encoded_frame.h"
-#include "modules/video_coding/include/video_codec_initializer.h"
 #include "modules/video_coding/include/video_codec_interface.h"
-#include "modules/video_coding/jitter_buffer.h"
-#include "modules/video_coding/packet.h"
 #include "modules/video_coding/timing.h"
 #include "rtc_base/criticalsection.h"
 #include "rtc_base/thread_checker.h"