Detailed Drawings > Annotating the Drawing > Cleaning Up Dimension and Detail Display > To Erase Dimensions and Detailing Items
  
To Erase Dimensions and Detailing Items
You can remove both driving and driven dimensions from the display by hiding them. This does not delete them from the model.
To hide dimensions and detailing items, select dimensions and detailing items that you want to hide, right-click and select Hide on the shortcut menu.