Revert "Handle reserved Kotlin keywords (#84973)" (#86512)

This reverts commit a67f618a.

packages/flutter_tools/lib/src/template.dart

@@ -322,18 +322,6 @@ class Template {
 
       if (sourceFile.path.endsWith(templateExtension)) {
         final String templateContents = sourceFile.readAsStringSync();
-        final String? androidIdentifier = context['androidIdentifier'] as String?;
-        if (finalDestinationFile.path.endsWith('.kt') && androidIdentifier != null) {
-          final List<String> segments = androidIdentifier
-              .split('.')
-              .toList();
-          final List<String> reserved = <String>['when', 'in'];
-          final List<String> correctedSegments = segments.map(
-              (String segment) => reserved.contains(segment) ? '`$segment`' : segment
-          ).toList();
-          context['androidIdentifier'] = correctedSegments.join('.');
-        }
-
         final String renderedContents = _templateRenderer.renderString(templateContents, context);
 
         finalDestinationFile.writeAsStringSync(renderedContents);

packages/flutter_tools/test/general.shard/android/template_test.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// 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:file/file.dart';
-import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/logger.dart';
-import 'package:flutter_tools/src/isolated/mustache_template.dart';
-import 'package:flutter_tools/src/template.dart';
-
-import '../../src/common.dart';
-
-void main() {
-
-  testWithoutContext('kotlin reserved keywords', () {
-    final FileSystem fileSystem = MemoryFileSystem.test();
-    final BufferLogger logger = BufferLogger.test();
-    final Directory rootDir = fileSystem.systemTempDirectory.createTempSync('flutter_template_test.');
-    final Directory templateSource = rootDir.childDirectory('src');
-    final Directory baseDir = templateSource;
-    final Directory imageSourceDir = templateSource;
-    final Directory destination = rootDir.childDirectory('dest');
-
-    const String outputClass = 'SomeClass.kt';
-
-    final File sourceFile = templateSource.childFile('$outputClass.tmpl');
-
-    templateSource.createSync();
-    sourceFile.writeAsStringSync('package {{androidIdentifier}};');
-
-    final Template template = Template(
-        templateSource,
-        baseDir,
-        imageSourceDir,
-        fileSystem: fileSystem,
-        logger: logger,
-        templateRenderer: const MustacheTemplateRenderer(),
-        templateManifest: null
-    );
-
-    final Map<String, Object> context = <String, Object>{
-      'androidIdentifier': 'in.when.there'
-    };
-    template.render(destination, context);
-
-    final File destinationFile = destination.childFile(outputClass);
-    expect(destinationFile.readAsStringSync(), equals('package `in`.`when`.there;'));
-  });
-
-}