ALSA: hda: Remove unused macro definition

It is not used anywhere in the file, so there is no need to keep it.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220706120230.427296-9-cezary.rojewski@intel.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/hda/ext/hdac_ext_controller.c

@@ -14,13 +14,6 @@
 #include <sound/hda_register.h>
 #include <sound/hdaudio_ext.h>
 
-/*
- * maximum HDAC capablities we should parse to avoid endless looping:
- * currently we have 4 extended caps, so this is future proof for now.
- * extend when this limit is seen meeting in real HW
- */
-#define HDAC_MAX_CAPS 10
-
 /*
  * processing pipe helpers - these helpers are useful for dealing with HDA
  * new capability of processing pipelines