In the Intro section of your return (Easy Step), there's a spot in the Contact Info section to indicate whether or not your spouse qualifies for the Canada Caregiver Amount. It's within the disabled question. If you've answered that question (regarding your spouse) in your profile as No, the credit should be removed from the Schedule 5.
If the answer is currently Yes, change it to No and then select Continue at the bottom of the Contact Info screen to save your selection.
