Apple Watch Workouts

On the watch go into the workout app and there is the long list of workout types,to remove the one's that you don't want,swipe left on the entry and tap the red "X" and this will remove that workout type.

Tap on the workout app and scroll down to the bottom and tap on "Add Workout" then scroll down the list until you find the workout type you want then tap on it and it will be added back to your list of workouts.