message: Expression: clean up unused variable
diff: @@ -500,7 +500,6 @@ bool ExpressionSourceCode::GetText(
  }
  }
  }
  - const bool playground = options.GetPlaygroundTransformEnabled();
  SwiftPersistentExpressionState *persistent_state =
  llvm::cast<SwiftPersistentExpressionState>(target->GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeSwift));
  std::vector<swift::ValueDecl *> persistent_results;
  