Is it safe to uninstall or delete AIR? How?

As far as I know—and I won't be shocked if I'm wrong—I have no AIR programs installed in any of my Macs, yet I see some AIR folders and icons on them. 

Is it safe to uninstall them? Is there an Unistaller somewhere, or can they just be moved to the Trash and nuked?

I do run Photoshop 13.0.5, Bridge 3.0, DNG Converter 6.4, Illustrator 12.0.1, Acrobat Professional 8.3.1, InDesign 4.0.5, Adobe Media PLayer 1.1, Adobe Reader and 9.3.0.  Mac OS X 10.4.11 Tiger, G5 Quad  PPC Power Mac.

Thanks in advance.