How to Remove Activities From Facebook
Share your favorite activities on Facebook to keep your friends up to date on how you spend your days. As your lifestyle changes, edit your profile to reflect your latest habits. Just as with any aspect of your Facebook profile, your activities may be visible to the Facebook community at large, or only confirmed friends. You can change your preferences in the "Privacy Settings" menu. Adding or removing an activity takes just a few seconds.
Log in to Facebook, then click the "Profile" link at the top of your Facebook screen to access your profile.
Click on the gray "Edit Profile" button in the top right corner of your Profile screen.
Select the "Activities and Interests" tab in the left column.
Click the small gray "x" to the right of an activity's name to remove it. Click "Remove" in the pop-up window to confirm that you want to delete the activity. Facebook automatically saves your changes.