staging: vt6655: mac.c and mac.h remove dead functions.

MACvReadAllRegs
MACbyReadMultiAddr
MACvWriteMultiAddr
MACvSetMultiAddrByHash
MACvResetMultiAddrByHash
MACvSetRxThreshold
MACvGetRxThreshold
MACvSetTxThreshold
MACvGetTxThreshold
MACvSetDmaLength
MACvGetDmaLength
MACvGetLongRetryLimit
MACbIsInLoopbackMode
MACbCompareContext
MACvOneShotTimer0MicroSec
MACbTxDMAOff
MACvClearBusSusInd
MACvEnableBusSusEn
MACbFlushSYNCFifo
MACvSetDefaultKeyEntry
MACvEnableDefaultKey
MACvDisableDefaultKey
MACvSetDefaultTKIPKeyEntry
MACvSetDefaultKeyCtl

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>