Automated g4 rollback of changelist 204825452.
Automated g4 rollback of changelist 204825452.

*** Reason for rollback ***

Breaks most YouTube Web targets: https://test.corp.google.com/ui#cl=204864056&p=youtube.ytfe_innertube.primary&t=//video/youtube/frontend/utils/python:endpoint_config_ajax_test

*** Original change description ***

Extern cleanup: Move ActiveXObject to ie_dom.js and mark it as deprecated.

ActiveXObject is an internet explorer api only and should not be part of the extern file defining standard api.

***

PiperOrigin-RevId: 204891658

google/elemental2,google/elemental2