Revert "cmsdk: Don't change ring volume or mode if DND is enabled"

This causes issues when DND gets enabled automatically because of
a phone call or when profiles are not enabled. Moreover some profiles
can enable DND, causing DND to get stuck until manually toggled.

REGRESSION-1142

This reverts commit 3d3d2e9c.

Change-Id: Iabac796f5d63768822e4f4b67c84f48cfb827456