staging:rtl8192u: Remove unused RTL8258 definitions - Style

Remove the unused RTL8258 definitions. These definitions fail the checkpatch
CamelCase naming test, rather then renaming, as the definitions are unused
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

@@ -104,11 +104,6 @@
 /* Zebra4 */
 #define rGlobalCtrl				0
 
-/* RTL8258 */
-#define rRTL8258_TxLPF				0x11
-#define rRTL8258_RxLPF				0x13
-#define rRTL8258_RSSILPF		0xa
-
 /* Bit Mask
  * page-1
  */