ASoC: Intel: avs: remove redundant dapm routes

Merge series from Brent Lu <brent.lu@intel.com>:

This patch series remove redundant dapm routes declared in multiple machine
drivers. These routes will be created by snd_soc_dapm_connect_dai_link_widgets()
during soundcard initialization. Following is the kernel log from a KBL
chromebook nocturne.

dmic:
[   13.773455] avs_dmic avs_dmic: connected DAI link dmic-codec:Capture -> dmic-platform:DMIC Rx
[   13.773460] avs_dmic avs_dmic: connected DAI link dmic-codec:Capture -> dmic-platform:DMIC WoV Rx

max98373:
[   14.079536] avs_max98373 avs_max98373.1: connected DAI link avs_max98373.1-platform:ssp0 Tx -> i2c-MX98373:00:Right HiFi Playback
[   14.079545] avs_max98373 avs_max98373.1: connected DAI link i2c-MX98373:00:Right HiFi Capture -> avs_max98373.1-platform:ssp0 Rx
[   14.079550] avs_max98373 avs_max98373.1: connected DAI link avs_max98373.1-platform:ssp0 Tx -> i2c-MX98373:01:Left HiFi Playback
[   14.079554] avs_max98373 avs_max98373.1: connected DAI link i2c-MX98373:01:Left HiFi Capture -> avs_max98373.1-platform:ssp0 Rx

hdaudio:
[   14.094818] avs_hdaudio avs_hdaudio.2: connected DAI link hdaudioB0D2-platform:hdaudioB0D2-cpu0 Tx -> hdaudioB0D2:HDMI 0 Playback
[   14.094824] avs_hdaudio avs_hdaudio.2: connected DAI link hdaudioB0D2-platform:hdaudioB0D2-cpu1 Tx -> hdaudioB0D2:HDMI 1 Playback
[   14.094828] avs_hdaudio avs_hdaudio.2: connected DAI link hdaudioB0D2-platform:hdaudioB0D2-cpu2 Tx -> hdaudioB0D2:HDMI 2 Playback