diff --git a/lib/ui/painting.dart b/lib/ui/painting.dart
index a6c96ac929884..33d209486f6d1 100644
--- a/lib/ui/painting.dart
+++ b/lib/ui/painting.dart
@@ -2632,8 +2632,6 @@ class ColorFilter {
   final int _type;
 
   // The type of SkColorFilter class to create for Skia.
-  // These constants must be kept in sync with ColorFilterType in paint.cc.
-  static const int _TypeNone = 0; // null
   static const int _TypeMode = 1; // MakeModeFilter
   static const int _TypeMatrix = 2; // MakeMatrixFilterRowMajor255
   static const int _TypeLinearToSrgbGamma = 3; // MakeLinearToSRGBGamma
diff --git a/lib/web_ui/lib/src/engine/color_filter.dart b/lib/web_ui/lib/src/engine/color_filter.dart
index 48e4b8bb60863..c6dcf8e1a9088 100644
--- a/lib/web_ui/lib/src/engine/color_filter.dart
+++ b/lib/web_ui/lib/src/engine/color_filter.dart
@@ -114,8 +114,6 @@ class EngineColorFilter implements ui.ColorFilter {
   final int _type;
 
   // The type of SkColorFilter class to create for Skia.
-  // These constants must be kept in sync with ColorFilterType in paint.cc.
-  static const int _TypeNone = 0; // null
   static const int _TypeMode = 1; // MakeModeFilter
   static const int _TypeMatrix = 2; // MakeMatrixFilterRowMajor255
   static const int _TypeLinearToSrgbGamma = 3; // MakeLinearToSRGBGamma