usb: chipidea: remove unused field "regs" from ci13xxx

The old implementation used global hw_bank, the new implementation uses
udc-local hw_bank. This field seems to be a leftover from previous coding
experiments.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/ci.h

@@ -80,7 +80,6 @@ struct hw_bank {
 /* CI13XXX UDC descriptor & global resources */
 struct ci13xxx {
 	spinlock_t		   lock;      /* ctrl register bank access */
-	void __iomem              *regs;      /* registers address space */
 
 	struct dma_pool           *qh_pool;   /* DMA pool for queue heads */
 	struct dma_pool           *td_pool;   /* DMA pool for transfer descs */

drivers/usb/chipidea/ci13xxx_msm.c

@@ -15,7 +15,7 @@
 
 #include "ci.h"
 
-#define MSM_USB_BASE	(udc->regs)
+#define MSM_USB_BASE	(udc->hw_bank.abs)
 
 static void ci13xxx_msm_notify_event(struct ci13xxx *udc, unsigned event)
 {