The existing tooltip of Clear Constraints modifier in object mode
(`object.constraints_clear`) didn't match its functionality. It said it
works only on the active object, but it affects all selected objects.
Hence, the tooltip has been changed from 'Clear all the constraints for
the active object only' to 'Clear all the constraints for the selected
objects'.
Also the tooltip for 'Clear Pose Constraints' in Pose Mode was updated
for consistency with the above update.
Pull Request: https://projects.blender.org/blender/blender/pulls/106918
cc84d83929