Secret 'Test Audio' left in the files of the LEGO® Star Wars™ III - The Clone Wars™ game

I was extracting the 3D models from the Lego Star Wars for use in a side project, when I got distracted and started digging through the audio files just to listen to the amazing music in this game, when I found a file called "SYNCTEST.OGG" left in here. The audio is nowhere to be found in game. I assume it's purpose was to test the cutscene audio being properly synced to the cutscenes as they played. but I'm confused as to why it was still left in here. (I converted the file to an MP4 so that...