If you would like to remove the Hears from your site (Not show them in your pages), do the following:
1.Go to Members -> Membership Levels
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 Features Tab and disable the Add to Favorites option
4. Read steps 2 and 3 for all other Membership Levels that have the Favorite feature enabled.
5. Once all membership levels have the favorite feature disabled, the heart will not appear on any of your pages.