audio: Remove unused audio routes

Change-Id: Ia3670f075369eb721e12588c5c6f0b3525a51e67

audio/audio_hw.c

@@ -297,12 +297,8 @@ static const char * const device_table[SND_DEVICE_MAX] = {
     [SND_DEVICE_IN_HDMI_MIC] = "hdmi-mic",
     [SND_DEVICE_IN_BT_SCO_MIC] = "bt-sco-mic",
     [SND_DEVICE_IN_CAMCORDER_MIC] = "camcorder-mic",
-    [SND_DEVICE_IN_VOICE_DMIC_1] = "voice-dmic-1",
-    [SND_DEVICE_IN_VOICE_SPEAKER_DMIC_1] = "voice-speaker-dmic-1",
     [SND_DEVICE_IN_VOICE_REC_HEADSET_MIC] = "voice-rec-headset-mic",
     [SND_DEVICE_IN_VOICE_REC_MIC] = "voice-rec-mic",
-    [SND_DEVICE_IN_VOICE_REC_DMIC_1] = "voice-rec-dmic-1",
-    [SND_DEVICE_IN_VOICE_REC_DMIC_NS_1] = "voice-rec-dmic-ns-1",
     [SND_DEVICE_IN_LOOPBACK_AEC] = "loopback-aec",
 };
 
@@ -595,13 +591,6 @@ static snd_device_t get_input_snd_device(struct audio_device *adev, audio_device
         }
     } else if (source == AUDIO_SOURCE_VOICE_RECOGNITION) {
         if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
-            if (adev->dualmic_config == DUALMIC_CONFIG_1) {
-                if (channel_mask == AUDIO_CHANNEL_IN_FRONT_BACK)
-                    snd_device = SND_DEVICE_IN_VOICE_REC_DMIC_1;
-                else if (adev->ns_in_voice_rec)
-                    snd_device = SND_DEVICE_IN_VOICE_REC_DMIC_NS_1;
-            }
-
             if (snd_device == SND_DEVICE_NONE) {
                 snd_device = SND_DEVICE_IN_VOICE_REC_MIC;
             }
@@ -4210,7 +4199,6 @@ static int adev_open(const hw_module_t *module, const char *name,
         return -ENOMEM;
     }
 
-    adev->dualmic_config = DUALMIC_CONFIG_NONE;
     adev->ns_in_voice_rec = false;
 
     list_init(&adev->usecase_list);

audio/audio_hw.h

@@ -53,9 +53,6 @@ struct effect_info_s {
 #define SOUND_TRIGGER_HAL_LIBRARY_PATH "/system/lib/hw/sound_trigger.primary.flounder.so"
 #endif
 
-#define DUALMIC_CONFIG_NONE 0
-#define DUALMIC_CONFIG_1 1
-
 /* Sound devices specific to the platform
  * The DEVICE_OUT_* and DEVICE_IN_* should be mapped to these sound
  * devices to enable corresponding mixer paths
@@ -95,12 +92,8 @@ enum {
     SND_DEVICE_IN_HDMI_MIC,
     SND_DEVICE_IN_BT_SCO_MIC,
     SND_DEVICE_IN_CAMCORDER_MIC,
-    SND_DEVICE_IN_VOICE_DMIC_1,
-    SND_DEVICE_IN_VOICE_SPEAKER_DMIC_1,
     SND_DEVICE_IN_VOICE_REC_HEADSET_MIC,
     SND_DEVICE_IN_VOICE_REC_MIC,
-    SND_DEVICE_IN_VOICE_REC_DMIC_1,
-    SND_DEVICE_IN_VOICE_REC_DMIC_NS_1,
     SND_DEVICE_IN_LOOPBACK_AEC,
     SND_DEVICE_IN_END,
 
@@ -391,7 +384,6 @@ struct audio_device {
     struct listnode         usecase_list;
     bool                    speaker_lr_swap;
     unsigned int            cur_hdmi_channels;
-    int                     dualmic_config;
     bool                    ns_in_voice_rec;
 
     void*                   offload_fx_lib;