There is an option to "hide" it and it appears to me to actually remove it, not just hide it, from the system tray, since I don't see the icon when I look at the system tray properties.

So to remove the icon from the system tray: From within the Beta Anti Spyware program; Go into Options, Settings, General, then at the bottom there is an option you can enable to "hide" the program in the system tray, which as mentioned above, will keep it from loading in the system tray.