Staging: frontier: fix compiler warnings

Basically remove unused code and variables still hanging around.

Cc: David Taht <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/frontier/alphatrack.c

···
 /* Use our own dbg macro */
 #define dbg_info(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
 
-#if 0
-#define alphatrack_ocmd_info(dev, cmd, format, arg...) do { if (debug) ocmd_info(dev , cmd , format, ## arg); } while (0)
-
-#define alphatrack_icmd_info(dev, cmd, format, arg...) do { if (debug) icmd_info(dev , cmd, format, ## arg); } while (0)
-#else
 #define alphatrack_ocmd_info(dev, cmd, format, arg...)
 
 #define alphatrack_icmd_info(dev, cmd, format, arg...)
 
-#endif
 
 /* Module parameters */
 
···
 
 static struct usb_driver usb_alphatrack_driver;
 
-static void icmd_info(struct usb_alphatrack *dev, char *cmd, char *str, char *a) {
-/*
-if (dev->verbose) {
-} else {
-}
-*/
-}
-
-static void ocmd_info(struct usb_alphatrack *dev, char *cmd, char *str, char* a) {
-/*
-if (dev->verbose) {
-} else {
-}
-*/
-}
-
-
 /**
  *	usb_alphatrack_abort_transfers
  *      aborts transfers and frees associated data structures
···
 	struct usb_alphatrack *dev = urb->context;
 	unsigned int next_ring_head;
 	int retval = -1;
-	int *iptr;
 
 	if (urb->status) {
 		if (urb->status == -ENOENT ||

drivers/staging/frontier/alphatrack.h

···
         LIGHT_LOOP
 };
 
-static const char *Lightname[] = { "eq",
-"out",
-"f2",
-"send",
-"in",
-"f1",
-"pan",
-"undef1",
-"undef2",
-"shift",
-"mute",
-"tracksolo",
-"trackrec",
-"read",
-"write",
-"anysolo",
-"auto",
-"f4",
-"record",
-"window",
-"plugin",
-"f3",
-"loop",
-NULL };
-
 #define BUTTONMASK_BATTERY     0x00004000
 #define BUTTONMASK_BACKLIGHT   0x00008000
 #define BUTTONMASK_FASTFORWARD 0x04000000

drivers/staging/frontier/tranzport.c

···
 	LightPunch
 	};
 
-static const char *Lightname[8] = { "LightRecord",
-																		"LightTracrec",
-																		"LightTrackmute",
-																		"LightTrackSolo",
-																		"LightAnySolo",
-																		"LightLoop",
-																		"LightPunch",
-																		NULL };
-
-
 /* Structure to hold all of our device specific stuff */
 
 struct usb_tranzport {
···
 			   loff_t *ppos)
 {
 	struct usb_tranzport *dev;
-	size_t bytes_to_read;
 	int retval = 0;
 
 #if BUFFERED_READS