remove the mailinglist still preferred note, roundup is much nicer even though

it still has some issues which lu_zero needs to deal with :)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@9877 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

doc/issue_tracker.txt

 ffmpegs bug/patch/feature request tracker manual
 ================================================
 
-NOTE, this is a draft, it is not yet recommended to send real bugreports to the
-tracker but rather use the mailing lists.
-Though, if you are brave and do not mind that your bugreport might disappear or
-that you might be mailbombed due to a misconfiguration, you can surely try
-to enter a real bugreport.
+NOTE, this is a draft
 
 Overview:
 ---------