staging:rtl8192u: Remove unused Zebra4 definitions - Style

Remove the unused 'Zebra4' definitions. These definitions fail the
checkpatch CamelCase naming test, rather then rename as they are unused
definitions they have simply been removed. This is a coding style
change which should not impact runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r819xU_phyreg.h

@@ -103,8 +103,6 @@
 
 /* Zebra4 */
 #define rGlobalCtrl				0
-#define rRTL8256_TxLPF				19
-#define rRTL8256_RxLPF				11
 
 /* RTL8258 */
 #define rRTL8258_TxLPF				0x11