Removed unneccessary part, Fixes #2896 (#2899)

files/en-us/web/css/@import/index.html

@@ -24,7 +24,7 @@ <h2 id="Syntax">Syntax</h2>
 
 <dl>
  <dt><em>url</em></dt>
- <dd>Is a {{CSSxRef("&lt;string&gt;")}} or a {{CSSxRef("&lt;url&gt;")}} representing the location of the resource to import. The URL may be absolute or relative. Note that the URL for a Mozilla package need not actually specify a file; it can just specify the package name and part, and the appropriate file is chosen automatically (e.g. <code>chrome://communicator/skin/</code>). <a href="/en-US/docs/Mozilla/Tech/XUL/Tutorial/The_Chrome_URL">See here</a> for more information.</dd>
+ <dd>Is a {{CSSxRef("&lt;string&gt;")}} or a {{CSSxRef("&lt;url&gt;")}} representing the location of the resource to import. The URL may be absolute or relative.</dd>
  <dt><em>list-of-media-queries</em></dt>
  <dd>Is a comma-separated list of <a href="/en-US/docs/Web/CSS/Media_Queries/Using_media_queries">media queries</a> conditioning the application of the CSS rules defined in the linked URL. If the browser does not support any these queries, it does not load the linked resource.</dd>
  <dt><em>supports-query</em></dt>