omap: musb: remove unused dma data

we don't use those anywhere on musb driver, so
let's remove those old stuff.

Cc: linux-usb@vger.kernel.org
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/usb-musb.c

@@ -50,10 +50,7 @@ static struct resource musb_resources[] = {
 static struct musb_hdrc_config musb_config = {
 	.multipoint	= 1,
 	.dyn_fifo	= 1,
-	.dma		= 1,
 	.num_eps	= 16,
-	.dma_channels	= 7,
-	.dma_req_chan	= (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
 	.ram_bits	= 12,
 };