resolve css3-color issue 28, remove note about special treatement of computed value of system colors, http://wiki.csswg.org/spec/css3-color#issue-28

Author: Tantek Çelik

css3-color/Overview.src.html

@@ -1685,10 +1685,7 @@ <h4 id="css2-system">CSS2 system colors</h4>
 </pre>
 </div>
 
-<p class="note"><strong>Note.</strong> The computed value of a System Color 
-keyword value is the keyword itself.</p>
-
-<p>The CSS2 System Color values have been deprecated in favor of the CSS3 UI '<a href="http://www.w3.org/TR/css3-ui/#appearance" class="index-inst">appearance</a>' property. If you want to emulate the look of a user interface related element or control, please use the 'appearance' property instead of attempting to mimic a user interface element through a combination of system colors.</p> 
+<p class="note"><strong>Note.</strong> The CSS2 System Color values have been deprecated in favor of the CSS3 UI '<a href="http://www.w3.org/TR/css3-ui/#appearance" class="index-inst">appearance</a>' property. If you want to emulate the look of a user interface related element or control, please use the 'appearance' property instead of attempting to mimic a user interface element through a combination of system colors.</p> 
 
 
 <h3 id="notes">Notes on using colors</h3>