brcmfmac: Delete redundant length check

brcmf_fweh_process_event() sets event->datalen to the
endian-swapped value of event_packet->msg.datalen, which is the
same as emsg.datalen.  This length is already validated in
brcmf_fweh_process_event(), so there is no need to check it
again upon dequeuing the event.
Suggested-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c

@@ -257,11 +257,6 @@ static void brcmf_fweh_event_worker(struct work_struct *work)
 		brcmf_dbg_hex_dump(BRCMF_EVENT_ON(), event->data,
 				   min_t(u32, emsg.datalen, 64),
 				   "event payload, len=%d\n", emsg.datalen);
-		if (emsg.datalen > event->datalen) {
-			brcmf_err("event invalid length header=%d, msg=%d\n",
-				  event->datalen, emsg.datalen);
-			goto event_free;
-		}
 
 		/* special handling of interface event */
 		if (event->code == BRCMF_E_IF) {