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Steph_R - 7:45 pm on May 12, 2006 (gmt 0)
Also, why would you remove it? It helps to get your pages indexed more quickly. And with the new "diagnose" tab in the sitemaps console, it helps you to see any problems that G. might have with your site.
Call me paranoid, but I believe it would confuse G. if you removed the xml file.