Remove dependency on dev.Util class in DynaTableRf sample code.
Issue 5681.
Patch by: bobv
Review by: rchandia, rjrjr

Review at http://gwt-code-reviews.appspot.com/1164802


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9327 8db76d5a-ed1c-0410-87a9-c151d255dfc7