Editorial: remove no-op data-x-for attributes

Wattsi doesn't use this attribute, it has no effect.

data-x="concept-document-url" and data-x="concept-document-origin" are already used to link to these definitions, no for="" needed.

Author: foolip

source

@@ -10806,13 +10806,13 @@ o.myself = o;</code></pre>
   <ref>DOM</ref></p>
 
   <p>The <code>Document</code> object's <dfn id="the-document's-address"
-  data-x="concept-document-url" data-x-href="https://dom.spec.whatwg.org/#concept-document-url"
-  data-x-for="Document">URL</dfn> is defined in <cite>DOM</cite>. It is initially set when
-  the <code>Document</code> object is created, but can change during the lifetime of the
-  <code>Document</code> object; for example, it changes when the user <span
-  data-x="navigate">navigates</span> to a <span data-x="navigate-fragid">fragment</span> on the page
-  and when the <code data-x="dom-history-pushState">pushState()</code> method is called with a new
-  <span>URL</span>. <ref>DOM</ref></p>
+  data-x="concept-document-url"
+  data-x-href="https://dom.spec.whatwg.org/#concept-document-url">URL</dfn> is defined in
+  <cite>DOM</cite>. It is initially set when the <code>Document</code> object is created, but can
+  change during the lifetime of the <code>Document</code> object; for example, it changes when the
+  user <span data-x="navigate">navigates</span> to a <span data-x="navigate-fragid">fragment</span>
+  on the page and when the <code data-x="dom-history-pushState">pushState()</code> method is called
+  with a new <span>URL</span>. <ref>DOM</ref></p>
   <!--
     https://www.hixie.ch/tests/adhoc/dom/level0/history/pushState/002/
     https://www.hixie.ch/tests/adhoc/html/navigation/fragids/016.html
@@ -10823,10 +10823,9 @@ o.myself = o;</code></pre>
   mechanism by which a user can tell if a site is attempting to impersonate another.</p>
 
   <p>The <code>Document</code> object's <dfn data-x="concept-document-origin"
-  data-x-href="https://dom.spec.whatwg.org/#concept-document-origin"
-  data-x-for="Document">origin</dfn> is defined in <cite>DOM</cite>. It is initially set when the
-  <code>Document</code> object is created, and can change during the lifetime of the
-  <code>Document</code> only upon setting <code
+  data-x-href="https://dom.spec.whatwg.org/#concept-document-origin">origin</dfn> is defined in
+  <cite>DOM</cite>. It is initially set when the <code>Document</code> object is created, and can
+  change during the lifetime of the <code>Document</code> only upon setting <code
   data-x="dom-document-domain">document.domain</code>. A <code>Document</code>'s <span
   data-x="concept-document-origin">origin</span> can differ from the <span
   data-x="concept-url-origin">origin</span> of its <span data-x="concept-document-url">URL</span>;