ENG-12183: Fix broken tests. (#4379)
ENG-12183: Fix broken tests. (#4379)

ENG-12183: Fix broken tests. See issue for linked issue.
Unnecessary double encoding for update deployment caused test to fail. They were working because of extra decoding (leftover) causing VMC to fail. 
simonzhangsm/voltdb,deerwalk/voltdb,VoltDB/voltdb,deerwalk/voltdb,deerwalk/voltdb,VoltDB/voltdb,deerwalk/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb