Revert "Add view models for volume dialog ringer drawer"

This reverts commit e0303784.

Reason for revert: <Potential culprit for b/375074665  - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.>

Change-Id: Ife5e5c72a4cd4df6bcddcae5276d49ee45490bcb