Removes the specified focus tracker from the list of functions
to be called when any object receives focus.
Parameters
Deprecatedtracker_id: number
the id of the focus tracker to remove
Returns void
Deprecated
since 2.9.4: Focus tracking has been dropped as a feature to be implemented by ATK itself. If you need focus tracking on your implementation, subscribe to the Atk.Object.SignalSignatures.state_change | Atk.Object::state-change "focused" signal.
Removes the specified focus tracker from the list of functions to be called when any object receives focus.