Revert "Prevent NPE in PulseExpansionHandler"

This reverts commit 14f069b83ced6680a154753e9d944983e60f78a8.

Reason for revert: http://b/156204772

Bug: 156204772
Change-Id: Ie47d41d3d6625d3769005bd46b5dfe20171d5d70
1 file changed