Fix for TM hangs during abort issue.

Timing issue resulted from having doomtx/rollback and abort tx
executing at the same time for the same transaction.

Removed queuing when doomtx is called.

Change-Id: I58062bb7404b3bec9bb524fc958a34450401af78
Merge "Fix for TM hangs during abort issue." into proposed/0.8.3