staging: greybus: hid: remove KERNEL_VERSION checks

No need to support older kernel versions in the Greybus HID driver, so
remove the checks as needed, we can now rely on all of the "new" apis
being present.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/hid.c

@@ -277,23 +277,6 @@ static int gb_hid_raw_request(struct hid_device *hid, unsigned char reportnum,
 	}
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
-static int gb_hid_get_raw_report(struct hid_device *hid,
-				   unsigned char reportnum, __u8 *buf,
-				   size_t len, unsigned char rtype)
-{
-	return gb_hid_raw_request(hid, reportnum, buf, len, rtype,
-				  HID_REQ_GET_REPORT);
-}
-
-static int gb_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
-				    size_t len, unsigned char rtype)
-{
-	return gb_hid_raw_request(hid, buf[0], buf, len, rtype,
-				  HID_REQ_SET_REPORT);
-}
-#endif
-
 /* HID Callbacks */
 static int gb_hid_parse(struct hid_device *hid)
 {
@@ -422,9 +405,7 @@ static struct hid_ll_driver gb_hid_ll_driver = {
 	.open = gb_hid_open,
 	.close = gb_hid_close,
 	.power = gb_hid_power,
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)
 	.raw_request = gb_hid_raw_request,
-#endif
 };
 
 static int gb_hid_init(struct gb_hid *ghid)
@@ -444,10 +425,6 @@ static int gb_hid_init(struct gb_hid *ghid)
 	hid->driver_data = ghid;
 	hid->ll_driver = &gb_hid_ll_driver;
 	hid->dev.parent = &ghid->connection->bundle->dev;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
-	hid->hid_get_raw_report = gb_hid_get_raw_report;
-	hid->hid_output_raw_report = gb_hid_output_raw_report;
-#endif
 //	hid->bus = BUS_GREYBUS; /* Need a bustype for GREYBUS in <linux/input.h> */
 
 	/* Set HID device's name */