staging: brcm80211: replaced PKTSETLEN macro by native __skb_trim call

- removed PKTSETLEN macro and used __skb_trim call instead.
- removed unused macros PKTSETPOOL and PKTPOOL

Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
index db649a0..d94b11a 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
@@ -366,7 +366,7 @@
 		ASSERT(PKTLEN((p)) >= ((len) + datalign));	\
 		if (datalign)						\
 			skb_pull((p), datalign);			\
-		PKTSETLEN((p), (len));				\
+		__skb_trim((p), (len));				\
 	} while (0)
 
 /* Limit on rounding up frames */
@@ -3521,7 +3521,7 @@
 				prhex("Rx Subframe Data", dptr, dlen);
 #endif
 
-			PKTSETLEN(pfirst, sublen);
+			__skb_trim(pfirst, sublen);
 			skb_pull(pfirst, doff);
 
 			if (PKTLEN(pfirst) == 0) {
@@ -4151,7 +4151,7 @@
 					prhex("Glom Data", PKTDATA(pkt), len);
 				}
 #endif
-				PKTSETLEN(pkt, len);
+				__skb_trim(pkt, len);
 				ASSERT(doff == SDPCM_HDRLEN);
 				skb_pull(pkt, SDPCM_HDRLEN);
 				bus->glomd = pkt;
@@ -4164,7 +4164,7 @@
 		}
 
 		/* Fill in packet len and prio, deliver upward */
-		PKTSETLEN(pkt, len);
+		__skb_trim(pkt, len);
 		skb_pull(pkt, doff);
 
 #ifdef SDTEST