Follow-up: Remove old DelayCorrection AEC config

webrtc/modules/audio_processing/include/audio_processing.h

Index: webrtc/modules/audio_processing/include/audio_processing.h
diff --git a/webrtc/modules/audio_processing/include/audio_processing.h b/webrtc/modules/audio_processing/include/audio_processing.h
index a4dd0495c21cedd1ad7224fb9be352094f13870d..2163a9ecf21338d2dc4d27d45c778f3923f9386f 100644
--- a/webrtc/modules/audio_processing/include/audio_processing.h
+++ b/webrtc/modules/audio_processing/include/audio_processing.h
@@ -54,14 +54,6 @@ class VoiceDetection;
 //   the delay difference more heavily, and back off from the difference more.
 //   Adjustments force a readaptation of the filter, so they should be avoided
 //   except when really necessary.
-// TODO(henrik.lundin): Remove DelayCorrection once ExtendedFilter has
-// propagated through to all channels
-// (https://code.google.com/p/webrtc/issues/detail?id=4696).
-struct DelayCorrection {
-  DelayCorrection() : enabled(false) {}
-  explicit DelayCorrection(bool enabled) : enabled(enabled) {}
-  bool enabled;
-};
 struct ExtendedFilter {
   ExtendedFilter() : enabled(false) {}
   explicit ExtendedFilter(bool enabled) : enabled(enabled) {}