Revert "Add support for swipes started from an edge"

This revert was created by Android Culprit Assistant. The culprit was identified in the following culprit search session (http://go/aca-get/1532a952-a7ba-44a5-a759-5e39a5d0dfd8).

Change-Id: I8b94b10bfa4eebb2fad023df9086aeaee19e0852