Revert "Swipe notification to edge of screen"

This reverts commit 693ac178809c5486cd6d9299f9e65c83cfa51ae9.

Reason for revert: This breaks the notification outline during the expand animation. See b/171817112#comment19 for videos.

Change-Id: I671e4bb10bdc8c7e068ced2eb11c2b8b477b534b
2 files changed