Revert "don't expect aborted task to get sigterm"
Revert "don't expect aborted task to get sigterm"

This reverts commit 231c6fe071bafc3bb378f27354bf35ec10a701fc.

Signed-off-by: Yucheng Tu <84a3cda22a48c9e81f15e27384f15241ac826585@pivotal.io>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse