To restore a customized template to its default state:
When logged in as a store administrator, open the Template Editor tool in the storefront.
Locate a template you need to restore to the original state.
You can do this using one of the following ways:
navigating through the templates tree to the left;
enabling the Pick templates from page toggle and clicking on the page element to be edited.
Every modified template will have a special Reset icon in front of it.
Click the Reset icon in front of the template you want to restore to the default state.
Confirm the changes in the pop-up.
This confirmation cancels any modifications applied to a template previously and restores the default template instead. However, the modified template is not deleted completely and can be enabled if required in the edited templates list in the store Admin area (Look & Feel -> Edited Templates section).