Remove intl_translation from tool integration test (#69155)

packages/flutter_tools/test/integration.shard/gen_l10n_test.dart

@@ -14,11 +14,8 @@ import 'test_utils.dart';
 final GenL10nProject project = GenL10nProject();
 
 // Verify that the code generated by gen_l10n executes correctly.
-// It can fail if gen_l10n produces a lib/l10n/app_localizations.dart that:
-// - Does not analyze cleanly.
-// - Can't be processed by the intl_translation:generate_from_arb tool.
-// The generate_from_arb step can take close to a minute on a lightly
-// loaded workstation, so the test could time out on a heavily loaded bot.
+// It can fail if gen_l10n produces a lib/l10n/app_localizations.dart that
+// does not analyze cleanly.
 void main() {
   Directory tempDir;
   FlutterRunTestDriver flutter;

packages/flutter_tools/test/integration.shard/test_data/gen_l10n_project.dart

@@ -43,7 +43,6 @@ dependencies:
   flutter_localizations:
     sdk: flutter
   intl: 0.16.1
-  intl_translation: 0.17.8
 ''';
 
   @override