If you would like to remove the Hears from your site (Not show them in your pages), do the following:

1.Go to Finance - Manage Products 

2. Edit one of the Membership Levels that has the Favorite Feature enabled. You will know it is enabled if it shows on the Active Features column

3. Go to the Post Publishing Tab and disable the Add to Favorites option

4. Click Save.

5. Once all membership levels have the favorite feature disabled, the heart will not appear on any of your pages.