Revert "Include the Subreason, if any, in ApplicationExitInfo.getDescription()."

This reverts commit 248862fd6609345404e3c9ea3a80fc6786ad7b9d.

Reason for revert: culprit commit for b/268591066

Change-Id: Ibe0a666d6e753b922ece49ac9e7685882d6c4d5e
2 files changed