Revert "Force calculator to launch in fullscreen for taskbar tests"

This reverts commit 8771dfe3dd3bdae6a179df91ded9fb349fe85f70.

Reason for revert: was only a temporary fix while investigating issue, should be unnecessary after ag/27089675 is landed.

Change-Id: I5963dc77f31eb45c1cdd100788b045891de2d716
2 files changed