message: remove obsolete assertion
diff: @@ -118,7 +118,6 @@ Value ExpressionExecutor::EvaluateScalar(ClientContext &context, const Expressio
  "Prevent throwing an InternalException through a failed assertion, catch this in TryEvaluateScalar");
  }
  - D_ASSERT(allow_unfoldable || result.GetVectorType() == VectorType::CONSTANT_VECTOR);
  auto result_value = result.GetValue(0);
  D_ASSERT(result_value.type().InternalType() == expr.return_type.InternalType());
  return result_value;
  