removing useless jqueryUI CSS

public/templates/header.tpl

@@ -14,8 +14,6 @@
 	<!-- BEGIN pluginCSS -->
 	<link rel="stylesheet" href="{pluginCSS.path}?{cache-buster}">
 	<!-- END pluginCSS -->
-	<!-- TODO : this has to be refactored, maybe configured from ACP? -baris -->
-	<link rel="stylesheet" type="text/css" href="//code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
 	<!-- IF useCustomCSS -->
 	<style type="text/css">{customCSS}</style>
 	<!-- ENDIF useCustomCSS -->