SW-EK-TM4C1294XL: The grlib demos and uDMA

Part Number: SW-EK-TM4C1294XL

I'm working though the grlib_demo supplied with SW-TM4C- and I see that in grlib_demo.c starting at line 1070, the uDMA controller is enabled and set up.

Yet I can find no reference anywhere else in that project to the DMA controller. I commented-out the four lines for the uDMA set-up and the demo still worked, as far as I can tell.

Should we assume that the uDMA enable is just crufty leftover from some other demo?

Thanks !