LUCIDDB:  re-enable txn test to see if LER-303 was fixed        as a side-effect of fixing the scratch deallocation bug
LUCIDDB:  re-enable txn test to see if LER-303 was fixed
       as a side-effect of fixing the scratch deallocation bug

[git-p4: depot-paths = "//open/lu/dev/": change = 5525]

LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb