Revert "[Search][Motion] Separate AllApps scrim and content interpolation"

This reverts commit 8c383f97e4537c24affd0cd01631047509da2908.

Reason for revert: ScrimView is used in multiple places, Overview is broken by this change.

Change-Id: Ie395e2d94feaca4c9365bb5da68e9dc219990e03
4 files changed