Download link in ShowTransactions


I’m customizing RT to work for my company and I had some questions about
the purpose of ‘Download’ in ShowTransaction.

It seems that when a comment is made, there’s a corresponding 'Download’
link and when an actual attachment is added, there’s also a
corresponding ‘Download’ link.

Since I’ve customized RT to be totally web-based (no users will be
accessing RT through email or through commandline), the ‘Download’ link
for comments seems unnecessary-- since all the comments are on the
History screen AND that screen also includes all the transaction
history. When I click on the Download link for a comment, it just
brings up the plain text of the message without even a date/timestamp.

Is it possible to have the Download link only appear when there actually
is something attached, instead of just for view plain comments?