[docker] remove grails. it's not necessary in this image
[docker] remove grails. it's not necessary in this image

iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor