Re-write the output of taxonomy_term_page() without hacking core
You can do it with preprocess page something like this:

function themename_preprocess_page(&amp;$vars) {
  if  (arg(0) == 'taxonomy' &amp;&amp; arg(1) == 'term' &amp;&amp; is_numeric(arg(2))) {
    unset($vars['page']['content']['system_main']['term_heading']['#prefix']);
    unset($vars['page']['content']['system_main']['term_heading']['#suffix']);
  }
}


in your theme's template.php

I believe system_main could be called something else, depending on your site setup.