Deprecate SVGPoint (#10538)
Deprecate SVGPoint (#10538)

SVGPoint is not part of the current SVG spec (SVG2); instead at
https://svgwg.org/svg2-draft/single-page.html#changes-types the SVG2
spec specifically says:

> All appearance of SVGPoint were replaced by DOMPoint or
> DOMPointReadOnly.

Related MDN change: https://github.com/mdn/content/pull/5142
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data