usb: host: fhci-sched: Remove unused variable 'td'

'td' has been completely unused since the driver's inception in 2009.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/fhci-sched.c: In function ‘fhci_queue_urb’:
 drivers/usb/host/fhci-sched.c:704:13: warning: variable ‘td’ set but not used [-Wunused-but-set-variable]
 704 | struct td *td;
 | ^~

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Peter Barada <peterb@logicpd.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-32-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/fhci-sched.c

@@ -701,7 +701,6 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 	u32 data_len = urb->transfer_buffer_length;
 	int urb_state = 0;
 	int toggle = 0;
-	struct td *td;
 	u8 *data;
 	u16 cnt = 0;
 
@@ -770,7 +769,7 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 				usb_endpoint_maxp(&urb->ep->desc)) == 0))
 			urb_state = US_BULK0;
 		while (data_len > 4096) {
-			td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
+			fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
 				usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
 							 FHCI_TA_IN,
 				cnt ? USB_TD_TOGGLE_CARRY :
@@ -781,7 +780,7 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 			cnt++;
 		}
 
-		td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
+		fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
 			usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN,
 			cnt ? USB_TD_TOGGLE_CARRY : toggle,
 			data, data_len, 0, 0, true);
@@ -789,7 +788,7 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 
 		if (urb->transfer_flags & URB_ZERO_PACKET &&
 				cnt < urb_priv->num_of_tds) {
-			td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
+			fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
 				usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
 							 FHCI_TA_IN,
 				USB_TD_TOGGLE_CARRY, NULL, 0, 0, 0, true);
@@ -798,7 +797,7 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 		break;
 	case FHCI_TF_INTR:
 		urb->start_frame = get_frame_num(fhci) + 1;
-		td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
+		fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
 			usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN,
 			USB_TD_TOGGLE_DATA0, data, data_len,
 			urb->interval, urb->start_frame, true);
@@ -808,12 +807,12 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 		ed->max_pkt_size = usb_endpoint_maxp(&urb->ep->desc);
 
 		/* setup stage */
-		td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, FHCI_TA_SETUP,
+		fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, FHCI_TA_SETUP,
 			USB_TD_TOGGLE_DATA0, urb->setup_packet, 8, 0, 0, true);
 
 		/* data stage */
 		if (data_len > 0) {
-			td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
+			fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
 				usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
 							 FHCI_TA_IN,
 				USB_TD_TOGGLE_DATA1, data, data_len, 0, 0,
@@ -822,12 +821,12 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 
 		/* status stage */
 		if (data_len > 0)
-			td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
+			fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
 				(usb_pipeout(urb->pipe) ? FHCI_TA_IN :
 							  FHCI_TA_OUT),
 				USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true);
 		else
-			 td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
+			 fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
 				FHCI_TA_IN,
 				USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true);
 
@@ -844,7 +843,7 @@ void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
 			 */
 			frame += cnt * urb->interval;
 			frame &= 0x07ff;
-			td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
+			fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
 				usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
 							 FHCI_TA_IN,
 				USB_TD_TOGGLE_DATA0,