Input: remove unneeded DRIVER_LICENSE #defines

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.  For some of these drivers, the #define is just a
few lines above the MODULE_LICENSE() line, which is extra pointless.

Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/tablet/hanwang.c

@@ -30,11 +30,10 @@
 
 #define DRIVER_AUTHOR   "Xing Wei <weixing@hanwang.com.cn>"
 #define DRIVER_DESC     "USB Hanwang tablet driver"
-#define DRIVER_LICENSE  "GPL"
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_LICENSE("GPL");
 
 #define USB_VENDOR_ID_HANWANG		0x0b57
 #define HANWANG_TABLET_INT_CLASS	0x0003