Update 2020 Edition: Use something like Airsonic instead. Subsonic's code is closed source at this point, and thus this patch is useless, unless you are using a 9 year old verison of Subsonic for some reason.
A patch to disable the licensing functionality in Subsonic, a GPL-licensed media streaming server/web interface. Use of the mobile apps requires you to get a license after 30 days of trial. You obtain a license via donation.
Except that's not a donation. So, here's a patch to fix that. Support the Subsonic project with a donation that's actually a donation. The program is developed and maintained very well.
Steps to victory