Deprecate legacy .is-touch selector reference

[blackfalcon]

General Support Request

See the following code

WebCoreStyleSheets/src/utilityMixins/_anchor-roleButton.scss

Lines 55 to 75 in bc97653

	@if $env == component {
	:host(:not(.is-touching)) & {
	&:hover {
	cursor: pointer;
	text-decoration: underline;
	color: $hover-color;
	}
	}
	} @else if $env == noncomponent {
	@media (hover: hover) {
	&:hover {
	cursor: pointer;
	text-decoration: underline;
	color: $hover-color;
	}
	}
	} @else {
	@error 'Invalid $env option. Please use `component` or `noncomponent`';
	}

The selector :host(:not(.is-touching)) & is no longer supported by any component.

Possible Solution

Deprecate this functionality and set for removal with next MAJOR release.

Additional context

This was discovered with recent updates to the auro-hyperlink element AlaskaAirlines/auro-hyperlink#205

Exit criteria

This issue can be resolved once the identified code is set as DEPRECATED and slotted for removal with the next release.