Simplenews remove h2 title from head of node

I was sending off test emails to myself and had the displeasure of an obnoxious h2 title and the footer both appearing above the body. The footer as it turned out was there because I had included the tags in (so don't do that if you were thinking about it); the Header was legitimately part of the module. I've made this patch to remove the title, and I hope that it will be considered for the module.