Remove obsolete datastore.cfg properties

# The maximum thread pool size for each shard's data store data change notification executor.
# THIS SETTING HAS HAD NO EFFECT FOR A LONG TIME, IS DEPRECATED, AND WILL BE REMOVED IN A FUTURE RELEASE
#max-shard-data-change-executor-pool-size=20

# The maximum queue size for each shard's data store data change notification executor.
# THIS SETTING HAS HAD NO EFFECT FOR A LONG TIME, IS DEPRECATED, AND WILL E REMOVED IN A FUTURE RELEASE
#max-shard-data-change-executor-queue-size=1000

# The maximum queue size for each shard's data store data change listener.
# THIS SETTING HAS HAD NO EFFECT FOR A LONG TIME, IS DEPRECATED, AND WILL BE REMOVED IN A FUTURE RELEASE
#max-shard-data-change-listener-queue-size=1000

# The maximum queue size for each shard's data store executor.
# THIS SETTING HAS HAD NO EFFECT FOR A LONG TIME, IS DEPRECATED, AND WILL BE REMOVED IN A FUTURE RELEASE
#max-shard-data-store-executor-queue-size=5000