media: usbvision: remove unneeded DRIVER_LICENSE #define

There is no need to #define the license of the driver, just put it in
the MODULE_LICENSE() line directly as a text string.

This allows tools that check that the module license matches the source
code license to work properly, as there is no need to unwind the
unneeded dereference.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Johan Hovold <johan@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/usb/usbvision/usbvision-video.c

@@ -72,7 +72,6 @@
 #define DRIVER_NAME "usbvision"
 #define DRIVER_ALIAS "USBVision"
 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
-#define DRIVER_LICENSE "GPL"
 #define USBVISION_VERSION_STRING "0.9.11"
 
 #define	ENABLE_HEXDUMP	0	/* Enable if you need it */
@@ -141,7 +140,7 @@ MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1
 /* Misc stuff */
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_LICENSE("GPL");
 MODULE_VERSION(USBVISION_VERSION_STRING);
 MODULE_ALIAS(DRIVER_ALIAS);