Nevermind, found it in my original download in UPGRADING.txt. For the benefit of anyone else:
* Remove codebase files no longer utilized in osTicket 1.7. If you have
console access to your server, a codebase-cleanup.sh script is provided
for you in the setup/ folder to help you automatically take care of this.
Otherwise, you may safely remove the following files from your codebase if
they exist:
* Removed in osTicket-1.6-rc5
ostconfig.php
* Removed in osTicket-1.6.0
images/button.jpg
images/logo.jpg
images/new_ticket_title.jpg
images/ticket_status_title.jpg
include/settings.php
* Removed in osTicket-1.7.0
images/bg.gif
images/fibres.png
images/home.gif
images/icons
images/lipsum.png
images/logo2.jpg
images/logout.gif
images/my_tickets.gif
images/new_ticket.gif
images/new_ticket_icon.jpg
images/poweredby.jpg
images/rainbow.png
images/refresh_btn.gif
images/ticket_status.gif
images/ticket_status_icon.jpg
images/verticalbar.jpg
images/view_closed_btn.gif
images/view_open_btn.gif
include/class.msgtpl.php
include/class.sys.php
include/client/index.php
include/client/viewticket.inc.php
include/ost-config.sameple.php
include/staff/api.inc.php
include/staff/changepasswd.inc.php
include/staff/dept.inc.php
include/staff/depts.inc.php
include/staff/editticket.inc.php
include/staff/mypref.inc.php
include/staff/myprofile.inc.php
include/staff/newticket.inc.php
include/staff/premade.inc.php
include/staff/reply.inc.php
include/staff/smtp.inc.php
include/staff/viewticket.inc.php
scp/css/autosuggest_inquisitor.css
scp/css/datepicker.css
scp/css/main.css
scp/css/style.css
scp/css/tabs.css
scp/images/alert.png
scp/images/bg-login-box.gif
scp/images/icons/email_settings.gif
scp/images/logo-support.gif
scp/images/minus.gif
scp/images/ostlogo.jpg
scp/images/pagebg.jpg
scp/images/plus.gif
scp/images/refresh.gif
scp/images/tab.jpg
scp/images/view_closed.gif
scp/images/view_open.gif
scp/js/ajax.js
scp/js/autolock.js
scp/js/bsn.AutoSuggest_2.1.3.js
scp/js/calendar.js
scp/js/datepicker.js
scp/js/tabber.js
* Remove the setup/ folder. This contains code you won't need for a live
ticketing system.
