re-re-enable lint unnecessary_const (#20103)

packages/flutter_tools/lib/src/ios/code_signing.dart

diff --git a/packages/flutter_tools/lib/src/ios/code_signing.dart b/packages/flutter_tools/lib/src/ios/code_signing.dart
index 0da85d2..6797a6e 100644
--- a/packages/flutter_tools/lib/src/ios/code_signing.dart
+++ b/packages/flutter_tools/lib/src/ios/code_signing.dart
@@ -118,7 +118,7 @@
     return null;
 
   const List<String> findIdentityCommand =
-      const <String>['security', 'find-identity', '-p', 'codesigning', '-v'];
+      <String>['security', 'find-identity', '-p', 'codesigning', '-v'];
   final List<String> validCodeSigningIdentities = runCheckedSync(findIdentityCommand)
       .split('\n')
       .map<String>((String outputLine) {

packages/flutter_tools/lib/src/ios/devices.dart

diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index 3ea48a1..14b1b91 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -26,7 +26,7 @@
     'To work with iOS devices, please install ideviceinstaller. To install, run:\n'
     'brew install ideviceinstaller.';
 
-const Duration kPortForwardTimeout = const Duration(seconds: 10);
+const Duration kPortForwardTimeout = Duration(seconds: 10);
 
 class IOSDeploy {
   const IOSDeploy();
@@ -530,7 +530,7 @@
   @override
   List<ForwardedPort> get forwardedPorts => _forwardedPorts;
 
-  static const Duration _kiProxyPortForwardTimeout = const Duration(seconds: 1);
+  static const Duration _kiProxyPortForwardTimeout = Duration(seconds: 1);
 
   @override
   Future<int> forward(int devicePort, {int hostPort}) async {

packages/flutter_tools/lib/src/ios/simulators.dart

diff --git a/packages/flutter_tools/lib/src/ios/simulators.dart b/packages/flutter_tools/lib/src/ios/simulators.dart
index 16fcbc7..7e2de4e 100644
--- a/packages/flutter_tools/lib/src/ios/simulators.dart
+++ b/packages/flutter_tools/lib/src/ios/simulators.dart
@@ -145,10 +145,10 @@
 
   final String name;
 
-  static const SimControlListSection devices = const SimControlListSection._('devices');
-  static const SimControlListSection devicetypes = const SimControlListSection._('devicetypes');
-  static const SimControlListSection runtimes = const SimControlListSection._('runtimes');
-  static const SimControlListSection pairs = const SimControlListSection._('pairs');
+  static const SimControlListSection devices = SimControlListSection._('devices');
+  static const SimControlListSection devicetypes = SimControlListSection._('devicetypes');
+  static const SimControlListSection runtimes = SimControlListSection._('runtimes');
+  static const SimControlListSection pairs = SimControlListSection._('pairs');
 }
 
 /// A simulated device type.
@@ -668,7 +668,7 @@
     return v1.compareTo(v2);
 
   // Sorted in the least preferred first order.
-  const List<String> qualifiers = const <String>['-Plus', '', 's-Plus', 's'];
+  const List<String> qualifiers = <String>['-Plus', '', 's-Plus', 's'];
 
   final int q1 = qualifiers.indexOf(m1[2]);
   final int q2 = qualifiers.indexOf(m2[2]);