Just a slight fix.
Revert "ALSA: hda/realtek - Add support of ALC891 codec"

This reverts commit 7620fd06a15d387f2c771bb7cdf57a68c2ab1113.
Revert "ALSA: hda/realtek - Add support of ALC891 codec"

This reverts commit 7620fd06a15d387f2c771bb7cdf57a68c2ab1113.
Revert "USB: cdc-acm: fix potential urb leak and PM imbalance in write"

This reverts commit 17dd927ebd48144568bba05328b552289e021105.