diff --git a/packages/flutter/test/physics/clamped_simulation_test.dart b/packages/flutter/test/physics/clamped_simulation_test.dart
index 983452157b8..592f3197657 100644
--- a/packages/flutter/test/physics/clamped_simulation_test.dart
+++ b/packages/flutter/test/physics/clamped_simulation_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter_test/flutter_test.dart';
 
diff --git a/packages/flutter/test/physics/friction_simulation_test.dart b/packages/flutter/test/physics/friction_simulation_test.dart
index 19b6a3c14be..c3b15f10fb6 100644
--- a/packages/flutter/test/physics/friction_simulation_test.dart
+++ b/packages/flutter/test/physics/friction_simulation_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter_test/flutter_test.dart';
 
diff --git a/packages/flutter/test/physics/gravity_simulation_test.dart b/packages/flutter/test/physics/gravity_simulation_test.dart
index 096a780f61a..ccd6874f44b 100644
--- a/packages/flutter/test/physics/gravity_simulation_test.dart
+++ b/packages/flutter/test/physics/gravity_simulation_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter_test/flutter_test.dart';
 
diff --git a/packages/flutter/test/physics/near_equal_test.dart b/packages/flutter/test/physics/near_equal_test.dart
index 126b63d0727..7199333d04f 100644
--- a/packages/flutter/test/physics/near_equal_test.dart
+++ b/packages/flutter/test/physics/near_equal_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 
 import '../flutter_test_alternative.dart';
diff --git a/packages/flutter/test/physics/newton_test.dart b/packages/flutter/test/physics/newton_test.dart
index 69867c2f5df..ac5efadd391 100644
--- a/packages/flutter/test/physics/newton_test.dart
+++ b/packages/flutter/test/physics/newton_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter/widgets.dart';
 
diff --git a/packages/flutter/test/physics/tolerance_test.dart b/packages/flutter/test/physics/tolerance_test.dart
index d57a0f51fd3..543fc3db4d7 100644
--- a/packages/flutter/test/physics/tolerance_test.dart
+++ b/packages/flutter/test/physics/tolerance_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter_test/flutter_test.dart';
 
diff --git a/packages/flutter/test/physics/utils_test.dart b/packages/flutter/test/physics/utils_test.dart
index 874e6c7e050..d538ccc43fa 100644
--- a/packages/flutter/test/physics/utils_test.dart
+++ b/packages/flutter/test/physics/utils_test.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter/physics.dart';
 import 'package:flutter_test/flutter_test.dart';