Revert "Call setOverviewDragState() whenever taskbar is recreated"

This reverts commit 0adca26744fe6f5666c7b29e3a48a336a332484e.

Reason for revert: potential cause of presubmit failures

Change-Id: I102d92f86afc7fa21c806d3cf1642e343dc91d45
1 file changed