staging: vt6655: Compress return logic

Simplify function returns by merging assignment and return into
one command line.
Found with Coccinelle
@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;
Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/card.c

@@ -911,16 +911,13 @@ bool CARDbSoftwareReset(struct vnt_private *priv)
  */
 u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2)
 {
-	u64 qwTSFOffset = 0;
 	unsigned short wRxBcnTSFOffst;
 
 	wRxBcnTSFOffst = cwRXBCNTSFOff[byRxRate%MAX_RATE];
 
 	qwTSF2 += (u64)wRxBcnTSFOffst;
 
-	qwTSFOffset = qwTSF1 - qwTSF2;
-
-	return qwTSFOffset;
+	return qwTSF1 - qwTSF2;
 }
 
 /*