Remove RenderingContext typedef

[teoli2003]

Removed the page and every mention of it (rephrased if needed).

This is removing a spec table, which is a progress towards finishing #1146.
There is no bcd entry for it, so nothing to be done in mdn/browser-compat-data
The typedef is part of the Canvas API's sidebar, so there will be a PR in mdn/yari to remove it there.

[github-actions]

Preview URLs

• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/MDN/Contribute/Documentation_priorities
• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/HTMLCanvasElement/getContext
• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/RTCRtpReceiver/getSynchronizationSources
• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Canvas_API
• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/OffscreenCanvas
• https://pr6592.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/OffscreenCanvas/getContext

Flaws

Note! 4 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/MDN/Contribute/Documentation_priorities
Title: MDN documentation priority list
on GitHub
Flaw count: 1

• broken_links:
  • Can't resolve /en-US/docs/Web/API/URLUtilsReadOnly

---

URL: /en-US/docs/Web/API/Canvas_API
Title: Canvas API
on GitHub
Flaw count: 6

• broken_links:
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • and 1 more flaws omitted

External URLs

URL: /en-US/docs/MDN/Contribute/Documentation_priorities
Title: MDN documentation priority list
on GitHub

No external URLs

---

URL: /en-US/docs/Web/API/HTMLCanvasElement/getContext
Title: HTMLCanvasElement.getContext()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/RTCRtpReceiver/getSynchronizationSources
Title: RTCRtpReceiver.getSynchronizationSources()
on GitHub

No new external URLs

---

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

• 🚨 http://fabricjs.com (1 time)
• 🚨 http://paperjs.org/ (1 time)
• https://bucephalus.org/text/CanvasHandbook/CanvasHandbook.html (1 time)
• https://github.com/arv/explorercanvas (1 time)
• https://github.com/jeremyckahn/rekapi (1 time)
• https://joshondesign.com/p/books/canvasdeepdive/title.html (1 time)
• https://konvajs.github.io/ (1 time)
• https://p5js.org/ (1 time)
• https://phaser.io/ (1 time)
• https://ptsjs.org (1 time)
• https://scrawl.rikweb.org.uk/ (1 time)
• https://thejit.org/ (1 time)
• https://www.createjs.com/easeljs (1 time)
• https://www.patrick-wied.at/static/heatmapjs/ (1 time)
• https://zimjs.com (1 time)

---

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

No new external URLs

---

URL: /en-US/docs/Web/API/OffscreenCanvas/getContext
Title: OffscreenCanvas.getContext()
on GitHub

No new external URLs

(this comment was updated 2021-07-05 13:39:55.841160)

[Rumyra]

Looks great - just a nit for the spec header 👍

[Rumyra]

Thanks @teoli2003