DMA_ADDR_INVALID isn't used anymore on goku_udc,
we can just delete it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
 #define        DRIVER_DESC             "TC86C001 USB Device Controller"
 #define        DRIVER_VERSION          "30-Oct 2003"
 
-#define        DMA_ADDR_INVALID        (~(dma_addr_t)0)
-
 static const char driver_name [] = "goku_udc";
 static const char driver_desc [] = DRIVER_DESC;
 
        if (!req)
                return NULL;
 
-       req->req.dma = DMA_ADDR_INVALID;
        INIT_LIST_HEAD(&req->queue);
        return &req->req;
 }