message: fix: hide time_grain when x_axis value is undefined
diff: @@ -332,7 +332,7 @@ const time_grain_sqla: SharedControlConfig<'SelectControl'> = {
  const xAxis = controls?.x_axis;
  const xAxisValue = xAxis?.value;
  - if (xAxisValue === undefined || isAdhocColumn(xAxisValue)) {
  + if (isAdhocColumn(xAxisValue)) {
  return true;
  }
  if (isPhysicalColumn(xAxisValue)) {
  