remove old email address

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@31473 15284696-431f-4ddb-bdfa-cd5b030d7da7

tools/grassdocs.css

@@ -1,7 +1,7 @@
 /* GRASS documentation site style sheet
  * (copied by 'tools/build_html_index.sh')
  *
- * send improvements to weblist@grass.itc.it
+ * send improvements to GRASS Developers list
  * 
  *  (eg how to reach the same result on netscape, mozilla konqueror?)
  *