Fix remaining instance of confusing role="none presentation" note (#1418

)

index.html

@@ -6302,7 +6302,6 @@ <h5>Note regarding the ARIA 1.1 <code>none</code> role.</h5>
 				<div class="note" id="role-presentation-note-none">
 					<h5>Note regarding the ARIA 1.1 <rref>none</rref> role.</h5>
 					<p>In ARIA 1.1, the working group introduced <rref>none</rref> as a synonym to the <code>presentation</code> role, due to author confusion surrounding the intended meaning of the word "presentation" or "presentational." Many individuals erroneously consider <code>role="presentation"</code> to be synonymous with <code>aria-hidden="true"</code>, and we believe <code>role="none"</code> conveys the actual meaning more unambiguously.</p>
-					<p>Until implementations include sufficient support for <code>role="none"</code>, web authors are advised to use the <code>presentation</code> role alone <code>role="presentation"</code> or redundantly as a fallback to the <rref>none</rref> role <code>role="none presentation"</code>.</p>
 				</div>
 				<p>The intended use is when an element is used to change the look of the page but does not have all the functional, interactive, or structural relevance implied by the element type, or may be used to provide for an accessible fallback in older browsers that do not support <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr>.</p>
 				<p>Example use cases:</p>