ALSA: maestro3: Remove unused AC97 register definitions

#define DSP2HOST_REQ_I2SRATE    0x02

#define DSP2HOST_REQ_TIMER      0x04

/* AC97 registers */

/* XXX fix this crap up */

/*#define AC97_RESET              0x00*/

#define AC97_VOL_MUTE_B         0x8000

#define AC97_VOL_M              0x1F

#define AC97_LEFT_VOL_S         8

#define AC97_MASTER_VOL         0x02

#define AC97_LINE_LEVEL_VOL     0x04

#define AC97_MASTER_MONO_VOL    0x06

#define AC97_PC_BEEP_VOL        0x0A

#define AC97_PC_BEEP_VOL_M      0x0F

#define AC97_SROUND_MASTER_VOL  0x38

#define AC97_PC_BEEP_VOL_S      1

/*#define AC97_PHONE_VOL          0x0C

#define AC97_MIC_VOL            0x0E*/

#define AC97_MIC_20DB_ENABLE    0x40

/*#define AC97_LINEIN_VOL         0x10

#define AC97_CD_VOL             0x12

#define AC97_VIDEO_VOL          0x14

#define AC97_AUX_VOL            0x16*/

#define AC97_PCM_OUT_VOL        0x18

/*#define AC97_RECORD_SELECT      0x1A*/

#define AC97_RECORD_MIC         0x00

#define AC97_RECORD_CD          0x01

#define AC97_RECORD_VIDEO       0x02

#define AC97_RECORD_AUX         0x03

#define AC97_RECORD_MONO_MUX    0x02

#define AC97_RECORD_DIGITAL     0x03

#define AC97_RECORD_LINE        0x04

#define AC97_RECORD_STEREO      0x05

#define AC97_RECORD_MONO        0x06

#define AC97_RECORD_PHONE       0x07

/*#define AC97_RECORD_GAIN        0x1C*/

#define AC97_RECORD_VOL_M       0x0F

/*#define AC97_GENERAL_PURPOSE    0x20*/

#define AC97_POWER_DOWN_CTRL    0x26

#define AC97_ADC_READY          0x0001

#define AC97_DAC_READY          0x0002

#define AC97_ANALOG_READY       0x0004

#define AC97_VREF_ON            0x0008

#define AC97_PR0                0x0100

#define AC97_PR1                0x0200

#define AC97_PR2                0x0400

#define AC97_PR3                0x0800

#define AC97_PR4                0x1000

#define AC97_RESERVED1          0x28

#define AC97_VENDOR_TEST        0x5A

#define AC97_CLOCK_DELAY        0x5C

#define AC97_LINEOUT_MUX_SEL    0x0001

#define AC97_MONO_MUX_SEL       0x0002

#define AC97_CLOCK_DELAY_SEL    0x1F

#define AC97_DAC_CDS_SHIFT      6

#define AC97_ADC_CDS_SHIFT      11

#define AC97_MULTI_CHANNEL_SEL  0x74

/*#define AC97_VENDOR_ID1         0x7C

#define AC97_VENDOR_ID2         0x7E*/

/*

 * ASSP control regs

 */