Remove "unnecessary" imports. (#73368)

packages/flutter/lib/src/rendering/binding.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'dart:developer';
-import 'dart:typed_data';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';

packages/flutter/lib/src/rendering/debug.dart

@@ -2,9 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:flutter/foundation.dart';
-import 'package:flutter/painting.dart';
-
 import 'object.dart';
 
 export 'package:flutter/foundation.dart' show debugPrint;

packages/flutter/lib/src/rendering/debug_overflow_indicator.dart

@@ -5,7 +5,6 @@
 import 'dart:math' as math;
 import 'dart:ui' as ui;
 
-import 'package:flutter/painting.dart';
 import 'package:flutter/foundation.dart';
 
 import 'object.dart';

packages/flutter/lib/src/rendering/paragraph.dart

@@ -8,9 +8,7 @@ import 'dart:ui' as ui show Gradient, Shader, TextBox, PlaceholderAlignment, Tex
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:flutter/painting.dart';
 import 'package:flutter/semantics.dart';
-import 'package:flutter/services.dart';
 
 import 'package:vector_math/vector_math_64.dart';
 

packages/flutter/lib/src/rendering/proxy_box.dart

@@ -7,9 +7,7 @@ import 'dart:ui' as ui show ImageFilter, Gradient, Image, Color;
 import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:flutter/painting.dart';
 import 'package:flutter/semantics.dart';
-import 'package:flutter/services.dart';
 
 import 'package:vector_math/vector_math_64.dart';
 

packages/flutter/lib/src/rendering/rotated_box.dart

@@ -4,8 +4,6 @@
 
 import 'dart:math' as math;
 
-import 'package:flutter/gestures.dart';
-import 'package:flutter/painting.dart';
 import 'package:vector_math/vector_math_64.dart';
 
 import 'box.dart';

packages/flutter/lib/src/rendering/sliver.dart

@@ -8,7 +8,6 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:vector_math/vector_math_64.dart';
 
-import 'binding.dart';
 import 'box.dart';
 import 'debug.dart';
 import 'object.dart';

packages/flutter/lib/src/rendering/sliver_multi_box_adaptor.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:vector_math/vector_math_64.dart';
 
 import 'box.dart';

packages/flutter/lib/src/rendering/sliver_padding.dart

@@ -4,8 +4,6 @@
 
 import 'dart:math' as math;
 
-import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:vector_math/vector_math_64.dart';
 
 import 'debug.dart';

packages/flutter/lib/src/rendering/sliver_persistent_header.dart

@@ -6,7 +6,6 @@ import 'dart:math' as math;
 
 import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/semantics.dart';
 import 'package:vector_math/vector_math_64.dart';

packages/flutter/lib/src/rendering/view.dart

@@ -7,7 +7,6 @@ import 'dart:io' show Platform;
 import 'dart:ui' as ui show Scene, SceneBuilder, FlutterView;
 
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/services.dart';
 import 'package:vector_math/vector_math_64.dart';
 

packages/flutter/lib/src/rendering/viewport.dart

@@ -6,7 +6,6 @@ import 'dart:math' as math;
 
 import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/semantics.dart';
 import 'package:vector_math/vector_math_64.dart';