ALSA: emu10k1: remove some bogus defines

Firstly, remove the FXWC_* defines - the comment on FXWC implies that
the relevant defines are the (A_)EXTOUT_* ones. It's unclear where this
came from - it was in the initial ALSA import, but neither the driver
from Creative nor kX-project have these defines.

Secondly, remove A_HR, which made plain no sense (was unused, and
clashed with FXRT). Amends commit cbb7d8f9 ("emu10k1: Update
registers defines for the Audigy 2/emu10k2.5").
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230422161021.1143903-5-oswald.buddenhagen@gmx.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/emu10k1.h

@@ -471,7 +471,6 @@
 #define FXRT_CHANNELC		0x0f000000	/* Effects send bus number for channel's effects send C	*/
 #define FXRT_CHANNELD		0xf0000000	/* Effects send bus number for channel's effects send D	*/
 
-#define A_HR			0x0b	/* High Resolution. 24bit playback from host to DSP. */
 #define MAPA			0x0c		/* Cache map A						*/
 #define MAPB			0x0d		/* Cache map B						*/
 
@@ -626,20 +625,6 @@
 						/* is 16bit, 48KHz only. All 32 channels can be enabled */
 						/* simultaneously.					*/
 
-#define FXWC_DEFAULTROUTE_C     (1<<0)		/* left emu out? */
-#define FXWC_DEFAULTROUTE_B     (1<<1)		/* right emu out? */
-#define FXWC_DEFAULTROUTE_A     (1<<12)
-#define FXWC_DEFAULTROUTE_D     (1<<13)
-#define FXWC_ADCLEFT            (1<<18)
-#define FXWC_CDROMSPDIFLEFT     (1<<18)
-#define FXWC_ADCRIGHT           (1<<19)
-#define FXWC_CDROMSPDIFRIGHT    (1<<19)
-#define FXWC_MIC                (1<<20)
-#define FXWC_ZOOMLEFT           (1<<20)
-#define FXWC_ZOOMRIGHT          (1<<21)
-#define FXWC_SPDIFLEFT          (1<<22)		/* 0x00400000 */
-#define FXWC_SPDIFRIGHT         (1<<23)		/* 0x00800000 */
-
 #define A_TBLSZ			0x43	/* Effects Tank Internal Table Size. Only low byte or register used */
 
 #define TCBS			0x44		/* Tank cache buffer size register			*/

sound/pci/emu10k1/emupcm.c

@@ -1745,7 +1745,6 @@ int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device)
 	 * to these
 	 */	
 	
-	/* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
 	if (emu->audigy) {
 		emu->efx_voices_mask[0] = 0;
 		if (emu->card_capabilities->emu_model)