remove 4 Global States and properties (#999)

index.html

@@ -10751,6 +10751,7 @@ <h2>Definitions of States and Properties (all aria-* attributes)</h2>
 				<p>Indicates that the <a>element</a> is <a>perceivable</a> but disabled, so it is not editable or otherwise <a>operable</a>. See related <sref>aria-hidden</sref> and <pref>aria-readonly</pref>.</p>
 				<p>For example, irrelevant options in a radio group may be disabled. Disabled elements might not receive focus from the tab order. For some disabled elements, applications might choose not to support navigation to descendants. In addition to setting the <sref>aria-disabled</sref> attribute, authors SHOULD change the appearance (grayed out, etc.) to indicate that the item has been disabled.</p>
 				<p>The <a>state</a> of being disabled applies to the current element and all focusable descendant elements of the element on which the <sref>aria-disabled</sref> <a>attribute</a> is applied.</p>
+                <p class="note">While <sref>aria-disabled</sref> and proper scripting can successfully disable an element with role <rref>link</rref>, fully disabling a host language equivalent can be problematic. Authors are advised not to use <sref>aria-disabled</sref> on elements that cannot be fully disabled through author scripting alone.</p>
 			</div>
 			<table class="state-features">
 				<caption>Characteristics:</caption>