Remove transclusion from meta documentation

[teoli2003]

This removes the last occurrences of the {{page}} and the associated meta-documentation.

This is a major milestone: 10 months ago we decided to get rid of this macro as it was fragile, but also a performance problem for yari. We still need to wait until it is gone from mdn/translated-content, as well as the removal of the other transclusion macro (see #15872) before our developers can celebrate (and work hard to make good use of this simplification).

We (mostly @hamishwillee – a big thumb up to you! – but also the whole team) worked hard in the background: we had more than 400 occurrences of these initially.

🍾 🥳 🎆

[github-actions]

Preview URLs

• https://pr15906.content.dev.mdn.mozit.cloud/en-US/docs/MDN/Structures/Macros/Other

Flaws

URL: /en-US/docs/MDN/Structures/Macros/Other
Title: Other macros
on GitHub
Flaw count: 2

• broken_links:
  • Can't resolve /en-US/docs/Mozilla/Developer_guide/Source_Code/CVS
  • Can't resolve /en-US/docs/Mozilla/Developer_guide/mozilla-central

External URLs

URL: /en-US/docs/MDN/Structures/Macros/Other
Title: Other macros
on GitHub

• https://datatracker.ietf.org/doc/html/rfc2616 (1 time)
• https://dxr.mozilla.org/mozilla-central/source/browser/Makefile.in (2 times)
• https://en.wikipedia.org/wiki/Firefox (1 time)

(this comment was updated 2022-05-11 14:20:38.113925)

[wbamberg]

Fixes #3196 .

[queengooborg]

Documentation removal looks good to me, thanks!