Revert "Prevent setting mIsStashed in TaskbarStashController"

This reverts commit 51a210d78750b64a21e194752020bb597ae290bc.

Reason for revert: test may have been fixed before this got merged, will merge revert to confirm

Change-Id: Ib26b94af971eceb02e6bf58f39a578ee04eb72e8
1 file changed