plugins/drivers: remove bool to track if eventLoop shutdown and use context instead
plugins/drivers: remove bool to track if eventLoop shutdown and use context instead

nak3/nomad,hashicorp/nomad,nak3/nomad,burdandrei/nomad,nak3/nomad,burdandrei/nomad,burdandrei/nomad,nak3/nomad,hashicorp/nomad,nak3/nomad,dvusboy/nomad,dvusboy/nomad,nak3/nomad,burdandrei/nomad,hashicorp/nomad,burdandrei/nomad,hashicorp/nomad,dvusboy/nomad,dvusboy/nomad,dvusboy/nomad,dvusboy/nomad,burdandrei/nomad,hashicorp/nomad,hashicorp/nomad,nak3/nomad,dvusboy/nomad,burdandrei/nomad