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

This reverts commit a67f618.

Author: zanderso

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);