The easiest way to hide the store listing is by adding the following code to the style sheet from your theme.
Fix the Directions
If you want the “Directions” link in the info window to keep working, then make sure that the option to show the directions on google.com/maps is enabled.
The other alternative is to hide the “Directions” link with a CSS rule.
A future update will include a template that will only show the map and search box.