Disable memory checking on dist'd builds

[rkennedy-mode]

Gets rid of the following message (as well as any performance penalties we may be paying):

WARN: Strict java memory checking is enabled, don't do release builds or performance runs with this enabled. Invoke "ant clean" and "ant -Djmemcheck=NO_MEMCHECK" to disable.

I've confirmed this by running the prior release locally:

% docker run -it --rm ghcr.io/mode/voltdb/voltdb:8.4.11-8be892170dd5a44ac99bc17199459007a02f0fa0
Initializing VoltDB...

 _    __      ____  ____  ____
| |  / /___  / / /_/ __ \/ __ )
| | / / __ \/ / __/ / / / __  |
| |/ / /_/ / / /_/ /_/ / /_/ /
|___/\____/_/\__/_____/_____/

--------------------------------

Build: 8.4.11 This is not from a known repository Community Edition
Loaded node-specific settings from voltdbroot/config/path.properties
Connecting to VoltDB cluster as the leader...
Host id of this node is: 0
Starting a new database cluster
WARN: User authentication is not enabled. The database is accessible and could be modified or shut down by anyone on the network.
Initializing the database. This may take a moment...
WARN: Strict java memory checking is enabled, don't do release builds or performance runs with this enabled. Invoke "ant clean" and "ant -Djmemcheck=NO_MEMCHECK" to disable.
WARN: This is not a highly available cluster. K-Safety is set to 0.
WARN: Durability is turned off. Command logging is off.
Server Operational State is: NORMAL
Server completed initialization.

We can see the warning regarding memory checking above. Then running the newly built release:

% docker run -it --rm ghcr.io/mode/voltdb/voltdb:8.4.11-29708815499c03ac6b67e6de0ac7eb01afbd2c51
Initializing VoltDB...

 _    __      ____  ____  ____
| |  / /___  / / /_/ __ \/ __ )
| | / / __ \/ / __/ / / / __  |
| |/ / /_/ / / /_/ /_/ / /_/ /
|___/\____/_/\__/_____/_____/

--------------------------------

Build: 8.4.11 This is not from a known repository Community Edition
Loaded node-specific settings from voltdbroot/config/path.properties
Connecting to VoltDB cluster as the leader...
Host id of this node is: 0
Starting a new database cluster
WARN: User authentication is not enabled. The database is accessible and could be modified or shut down by anyone on the network.
Initializing the database. This may take a moment...
WARN: This is not a highly available cluster. K-Safety is set to 0.
WARN: Durability is turned off. Command logging is off.
Server Operational State is: NORMAL
Server completed initialization.

We see that there is no longer a memory checking warning.

[ultrabluewolf]

LGTM