remove deprecated no-unused-variable from tslint rules
remove deprecated no-unused-variable from tslint rules

pmuir/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,pmuir/fabric8-ui,pmuir/fabric8-ui,pmuir/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,pmuir/fabric8-ui,fabric8-ui/fabric8-ui,fabric8-ui/fabric8-ui