[cssom-view] Remove a bogus check in scrollTop/Left getter. https://www.w3.org/Bugs/Public/show_bug.cgi?id=23453

--HG--
extra : rebase_source : 006ff8c044cb559596b67d250d0ce8e4daa12ea6

Author: Simon Pieters

cssom-view/Overview.src.html

@@ -1027,8 +1027,7 @@ <h2>Extensions to the <code title>Element</code> Interface</h2>
  <li><p>If the element is the root element return the value of
  <code title='dom-Window-scrollY'>scrollY</code>.</p></li>
  <li><p>If the element is <span>the HTML <code title>body</code> element</span>,
- the <code data-anolis-spec=dom>Document</code> is in <span data-anolis-spec=dom title=concept-document-quirks>quirks mode</span>, and the element
- does not have any overflow, return the value of
+ the <code data-anolis-spec=dom>Document</code> is in <span data-anolis-spec=dom title=concept-document-quirks>quirks mode</span>, return the value of
  <code title=dom-Window-scrollY>scrollY</code>.</p></li>
  <li><p>Return the y-coordinate of the <span>scrolling area</span> at the
  alignment point with the top of the <span>padding edge</span> of the
@@ -1065,8 +1064,7 @@ <h2>Extensions to the <code title>Element</code> Interface</h2>
  <li><p>If the element is the root element return the value of
  <code title=dom-Window-scrollX>scrollX</code>.</p></li>
  <li><p>If the element is <span>the HTML <code title>body</code> element</span>,
- the <code data-anolis-spec=dom>Document</code> is in <span data-anolis-spec=dom title=concept-document-quirks>quirks mode</span>, and the element
- does not have any overflow, return the value of
+ the <code data-anolis-spec=dom>Document</code> is in <span data-anolis-spec=dom title=concept-document-quirks>quirks mode</span>, return the value of
  <code title=dom-Window-scrollX>scrollX</code>.</p></li>
  <li><p>Return the x-coordinate of the <span>scrolling area</span> at the
  alignment point with the left of the <span>padding edge</span> of the