diff --git a/cmds/surfacereplayer/proto/src/trace.proto b/cmds/surfacereplayer/proto/src/trace.proto
index c6f656b..79aab82 100644
--- a/cmds/surfacereplayer/proto/src/trace.proto
+++ b/cmds/surfacereplayer/proto/src/trace.proto
@@ -50,11 +50,10 @@
         CornerRadiusChange          corner_radius           = 16;
         ReparentChange              reparent                = 17;
         RelativeParentChange        relative_parent         = 18;
-        DetachChildrenChange        detach_children         = 19;
-        ReparentChildrenChange      reparent_children       = 20;
-        BackgroundBlurRadiusChange  background_blur_radius  = 21;
-        ShadowRadiusChange          shadow_radius           = 22;
-        BlurRegionsChange           blur_regions            = 23;
+        ReparentChildrenChange      reparent_children       = 19;
+        BackgroundBlurRadiusChange  background_blur_radius  = 20;
+        ShadowRadiusChange          shadow_radius           = 21;
+        BlurRegionsChange           blur_regions            = 22;
     }
 }
 
@@ -200,10 +199,6 @@
     required int32 z = 2;
 }
 
-message DetachChildrenChange {
-    required bool detach_children = 1;
-}
-
 message ShadowRadiusChange {
     required float radius = 1;
 }
diff --git a/cmds/surfacereplayer/replayer/Replayer.cpp b/cmds/surfacereplayer/replayer/Replayer.cpp
index 5849212..58d6582 100644
--- a/cmds/surfacereplayer/replayer/Replayer.cpp
+++ b/cmds/surfacereplayer/replayer/Replayer.cpp
@@ -417,9 +417,6 @@
             case SurfaceChange::SurfaceChangeCase::kRelativeParent:
                 setRelativeParentChange(transaction, change.id(), change.relative_parent());
                 break;
-            case SurfaceChange::SurfaceChangeCase::kDetachChildren:
-                setDetachChildrenChange(transaction, change.id(), change.detach_children());
-                break;
             case SurfaceChange::SurfaceChangeCase::kShadowRadius:
                 setShadowRadiusChange(transaction, change.id(), change.shadow_radius());
                 break;
@@ -713,11 +710,6 @@
     t.setRelativeLayer(mLayers[id], mLayers[c.relative_parent_id()], c.z());
 }
 
-void Replayer::setDetachChildrenChange(SurfaceComposerClient::Transaction& t,
-        layer_id id, const DetachChildrenChange& c) {
-    t.detachChildren(mLayers[id]);
-}
-
 void Replayer::setReparentChildrenChange(SurfaceComposerClient::Transaction& t,
         layer_id id, const ReparentChildrenChange& c) {
     if (mLayers.count(c.parent_id()) == 0 || mLayers[c.parent_id()] == nullptr) {
diff --git a/cmds/surfacereplayer/replayer/Replayer.h b/cmds/surfacereplayer/replayer/Replayer.h
index a22262a..324d591 100644
--- a/cmds/surfacereplayer/replayer/Replayer.h
+++ b/cmds/surfacereplayer/replayer/Replayer.h
@@ -116,8 +116,6 @@
             layer_id id, const ReparentChange& c);
     void setRelativeParentChange(SurfaceComposerClient::Transaction& t,
             layer_id id, const RelativeParentChange& c);
-    void setDetachChildrenChange(SurfaceComposerClient::Transaction& t,
-            layer_id id, const DetachChildrenChange& c);
     void setReparentChildrenChange(SurfaceComposerClient::Transaction& t,
             layer_id id, const ReparentChildrenChange& c);
     void setShadowRadiusChange(SurfaceComposerClient::Transaction& t,