How can I remove the DATE from the review?

Removal of Date is only available in the Premium Plan.

If a Basic plan user is requesting this, please ask them to upgrade to the paid plan.

To remove the date from the reviews, from the AliReviews app's dashboard, navigate to Settings - Customize Widget 

Scroll down the Reviews section and tun-off the Date Enabled option.

You can only remove the dates from the review. There is no option to EDIT the dates.