staging: vt6655: Remove useless initialisation

Remove intialisation of a variable that is immediately reassigned.

The semantic patch used to find this is:

// <smpl>
@@
type T;
identifier x;
constant C;
expression e;
@@

T x
- = C
 ;
x = e;
// </smpl>
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/card.c

@@ -892,7 +892,7 @@ bool CARDbSoftwareReset(struct vnt_private *pDevice)
 u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2)
 {
 	u64 qwTSFOffset = 0;
-	unsigned short wRxBcnTSFOffst = 0;
+	unsigned short wRxBcnTSFOffst;
 
 	wRxBcnTSFOffst = cwRXBCNTSFOff[byRxRate%MAX_RATE];