To delete a goal, swipe from right-to-left on the goal you wish to delete and tap on the red trash can button.

To delete multiple goals, first tap on "Edit" in the upper-right hand corner. Then select all of the goals you wish to delete and select the "Delete" icon in the Action bar at the bottom of the screen.

 Edit icon

Please note: Deleting a Goal is permanent. If you wish to keep the Goal for future use, you can mark it as completed(Task), Formed(Habit), or Achieved(Dream) and later reactivate it.