Invoice owners can delete lines from an invoice. Invoices must be in New, In Progress, Reset, or Rejected status to delete lines.
Remove invoice lines
Open the invoice details view. Click the checkbox beside the line you want to delete to select it. Selected lines are highlighted in blue, and the Delete option is activated once at least one line is selected. 
Click Delete to remove the selected line. Click Save in the bottom left corner to save your changes. If you delete a line by accident, click out of the invoice without clicking Save. Click Don't Save on the Unsaved Changes pop-up to revert the changes.
