staging: rtl8192e: Remove unused variable RF_Type

Remove unused variable RF_Type.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7710a87f627dcfd2d0c34f14f583625ffab10660.1680902603.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib.h

@@ -1393,7 +1393,6 @@ struct rtllib_device {
 	size_t assocreq_ies_len, assocresp_ies_len;
 
 	bool	bForcedBgMode;
-	u8 RF_Type;
 
 	u8 hwsec_active;
 	bool is_silent_reset;