Remove remaining Deprecated_Header macros

[OnkarRuikar]

Related threads

• chore: Update writing guidlines and remove Deprecated_Header macro mentions #45345
• Update documentation for 'not recommended' baseline status mdn#835

Description

This is follow up of #45345 . The files that have been pulled here are the once should be updated only after the following requirement is implemented in the backend mdn/rari:

If there are pages on MDN where a deprecated banner is required but is not covered by web features, the front-matter status: deprecated will be used to display this labelling.

If we remove the Deprecated_header macro now, then the deprecated banner won't be shown till the rari implements the requirement.

Motivation

Let us wait till rari implements inferring the deprecated banner from front-matter.

Additional details

• https://github.com/orgs/mdn/discussions/911

[github-actions]

Preview URLs (3 pages)

• /en-US/docs/MDN/Kitchensink
• /en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onBrowserUpdateAvailable
• /en-US/docs/Web/API/HTMLAllCollection

External URLs (2)

URL: /en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onBrowserUpdateAvailable
Title: runtime.onBrowserUpdateAvailable

• https://chromium.googlesource.com/chromium/src/+/master/extensions/common/api/runtime.json (1 time)
• https://developer.chrome.com/docs/extensions/reference/api/runtime (1 time)

[rebloor]

@OnkarRuikar why are we removing this and not replacing it with anything? It's still marked as deprecated in the Chrome docs (https://developer.chrome.com/docs/extensions/reference/api/runtime#event-onBrowserUpdateAvailable). If we remove the macro, we need to replace it with something.

[OnkarRuikar]

We are not changing the status of the feature. Only removing the Deprecated_header macro because of https://github.com/orgs/mdn/discussions/911 .

Now the header banner will be inferred from the front-matter property status: deprecated(in this file the line 6).

[OnkarRuikar]

Marking the PR as draft till the rari implements the following requirement:

If there are pages on MDN where a deprecated banner is required but is not covered by web features, the frontmatter status: deprecated will be used to display this labelling.