staging: r8188eu: remove padapter param from aes_decipher function

Remove padapter parameter from aes_decipher function in
core/rtw_security.c, as I added it previously during debugging tweaks
and it is no longer required.
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220216010709.791-15-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_security.c

@@ -1144,7 +1144,7 @@ u32 rtw_aes_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
 	return res;
 }
 
-static int aes_decipher(struct adapter *padapter, u8 *key, uint hdrlen,
+static int aes_decipher(u8 *key, uint hdrlen,
 			u8 *pframe, uint plen)
 {
 	static u8	message[MAX_MSG_SIZE];
@@ -1365,7 +1365,7 @@ u32 rtw_aes_decrypt(struct adapter *padapter, struct recv_frame *precvframe)
 				prwskey = &stainfo->dot118021x_UncstKey.skey[0];
 			}
 			length = precvframe->len - prxattrib->hdrlen - prxattrib->iv_len;
-			res = aes_decipher(padapter, prwskey, prxattrib->hdrlen, pframe, length);
+			res = aes_decipher(prwskey, prxattrib->hdrlen, pframe, length);
 		} else {
 			res = _FAIL;
 		}