Remove regionfilter related utility methods

Change-Id: I1ab96280fa71cac3745eb7e7210b15a1e5bc78f8

test/index.html

@@ -12,7 +12,6 @@
 <script src="../src/jquery.uls.data.utils.js"></script>
 <script src="../src/jquery.uls.lcd.js"></script>
 <script src="../src/jquery.uls.languagefilter.js"></script>
-<script src="../src/jquery.uls.regionfilter.js"></script>
 <script src="../src/jquery.uls.core.js"></script>
 
 <!-- Test framework -->
@@ -32,4 +31,3 @@
 	<div id="qunit"></div>
 </body>
 </html>
-