staging: rtl8192e: Silence smatch info in r8192E_cmdpkt.c

Smatch outputs the following informational message:

  CHECK   drivers/staging/rtl8192e/r8192E_cmdpkt.c
drivers/staging/rtl8192e/r8192E_cmdpkt.c +419 cmpk_message_handle_rx(77) info: ignoring unreachable code.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8192e/r8192E_cmdpkt.c

@@ -415,6 +415,4 @@ u32 cmpk_message_handle_rx(struct net_device *dev,
 		pcmd_buff    += cmd_length;
 	}
 	return	1;
-
-	RT_TRACE(COMP_CMDPKT, "<----cmpk_message_handle_rx()\n");
 }