Removal of ValueCacheSize parameter / attribute for Server

Zabbix_server service fails to start due to this parameter being unknown...

zabbix_server [14006]: unknown parameter [ValueCacheSize] in config file [/etc/zabbix/zabbix_server.conf], line 28
zabbix_server did not start                                [FAILED]

Per zabbix documentation this parameter is not supported until version 2.2.  The default install in the cookbook is still at version 2.0.x.   https://www.zabbix.com/documentation/2.4/manual/appendix/config/zabbix_server

Unless of course the intention is to move the default to 2.2.x at which point this would no longer be an issue.