qca_7k_common: Drop unused len from qcafrm_handle

This member is never used. So drop it.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qualcomm/qca_7k_common.h

@@ -107,9 +107,6 @@ struct qcafrm_handle {
 
 	/* Offset in buffer (borrowed for length too) */
 	u16 offset;
-
-	/* Frame length as kept by this module */
-	u16 len;
 };
 
 u16 qcafrm_create_header(u8 *buf, u16 len);