In order to remove a Quotation from the system, select the Quotation so that the details pertaining to the Quotation are visible.
Click on the button and then press save. If you return to the Quotation Search List you will see that the Quotation is no longer listed.
Please note, Quotations with the status of "Working" can only be removed and they have to be blank; i.e. there can be no Options relating to the Quotation.