forgot to stop apple watch activity for other workout - Need to remove error in history

I forgot to stop the apple watch (other workout) activity after I finished a weight lifting workout. Now I have bad data in my workout history and I would like to remove this workout all together. The watch logged the activity for 4 hours, up until the batter drained and automatically stopped the workout. Normally when I go back into the activity it asks me do I want to save or delete. I would have picked delete but never go the option and it looks like the watch automatically saved the workout.

All I want is to be able to delete the saved activity.

Please advice.