Remove MediaSessionAction[Details] enum/dict from MDN

[queengooborg]

This PR removes the pages for the MediaSessionAction enum and MediaSessionActionDetails dictionary from MDN. Correlates with its removal in BCD, see mdn/browser-compat-data#14071.

[github-actions]

Preview URLs

• https://pr11296.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/MediaSession/setActionHandler
• https://pr11296.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/MediaSession
• https://pr11296.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Media_Session_API

Flaws

None! 🎉

External URLs

URL: /en-US/docs/Web/API/MediaSession
Title: MediaSession
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/MediaSession/setActionHandler
Title: MediaSession.setActionHandler()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Media_Session_API
Title: Media Session API
on GitHub

• https://bugzilla.mozilla.org/show_bug.cgi?id=1648100 (1 time)
• https://w3c.github.io/mediasession/ (1 time)

(this comment was updated 2021-12-18 16:12:54.757787)

[hamishwillee]

Great thanks!