I'm trying to disable document.createEvent("TouchEvent"), document.createTouch* and ontouch* event handlers on desktop in
order to follow what has been done in other browsers.
The issue is that some web pages use those features to detect whether touch is enabled, and if so, don't
expect mouse events.
https://github.com/w3c/touch-events/issues/64 has also some background.
The behavior will be behind dom.w3c_touch_events.legacy_apis.enabled pref, set to false by default on desktop.
(Touch API itself is enabled if touchscreen is detected)