Revert "Active display: Make GlowPadView center the current notification icon for us"

This reverts commit 727058d98c86938ceff27ea40734a260175ec28a.
Revert "Active display: Fix visible NavBar buttons on LockScreen"

This reverts commit 90038b07a6210c5ef3cfc9bf0bfb56332e4bf2fc.
Active display: Use a default notificaiton icon

In case there is an exception when trying to load the
notification icon we will use a default one.

Change-Id: I4087ef3e407cf976f7bfb2bb89f850641101bc73

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java