How do I (easily) delete a constraint in Interface Builder in Xcode 6

Question

Assume you\'ve selected an object and you have the Size Selector in the Utilities panel open. You can see the list of constraints applied to the object. In the list of constrain

Answer 1

The selected answer is incomplete. When you delete the constraint from the Size Inspector, you are leaving behind the constraint object in the Document Outline pane. It is greyed out, meaning it is not used, but still exists and, what's worse, will affect auto layout with errors, warnings or conflicting constraints and you will go crazy until you also delete them from the Document Outline pane.

So:

1. Delete the constraint from the Size Inspector as in the accepted answer
2. Delete any greyed out constraints from the Document Outline

Live a happy, constraint-free life.