staging: rtl8188eu: core: rtw_security: Remove return statement from void function

Remove the return statement from the end of a void function
to clean up the code.

Issue found by checkpatch.pl script.
Signed-off-by: Georgiana Rodica Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_security.c

@@ -233,7 +233,6 @@ void rtw_wep_decrypt(struct adapter  *padapter, u8 *precvframe)
 				 &crc, &payload[length-4]));
 		}
 	}
-	return;
 }
 
 /* 3		===== TKIP related ===== */