staging: vt6656: desc.h remove dead code typedef struct tagSRrvTime_atim.

#define TD_FLAGS_PRIV_SKB  0x02 /* check if called from private skb(hostap) */

#define TD_FLAGS_PS_RETRY  0x04 /* check if PS STA frame re-transmit */

/*

 * RsvTime buffer header

 */

typedef struct tagSRrvTime_atim {

    u16        wCTSTxRrvTime_ba;

    u16        wTxRrvTime_a;

} __attribute__ ((__packed__))

SRrvTime_atim, *PSRrvTime_atim;

typedef const SRrvTime_atim *PCSRrvTime_atim;

/*

 * TX FIFO header

 */