FAB-3187 remove dead code in core/admin.go

remove dead code caught by
github.com/dominikh/go-tools/tree/master/cmd/unused

Change-Id: Ia6831c0cbbd1c8f313277d098c2aac23d3561166
Signed-off-by: Christopher Ferris <chrisfer@us.ibm.com>

core/admin.go

@@ -18,7 +18,6 @@ package core
 
 import (
 	"os"
-	"runtime"
 
 	"github.com/op/go-logging"
 	"github.com/spf13/viper"
@@ -41,19 +40,6 @@ func NewAdminServer() *ServerAdmin {
 type ServerAdmin struct {
 }
 
-func worker(id int, die chan struct{}) {
-	for {
-		select {
-		case <-die:
-			log.Debugf("worker %d terminating", id)
-			return
-		default:
-			log.Debugf("%d is working...", id)
-			runtime.Gosched()
-		}
-	}
-}
-
 // GetStatus reports the status of the server
 func (*ServerAdmin) GetStatus(context.Context, *empty.Empty) (*pb.ServerStatus, error) {
 	status := &pb.ServerStatus{Status: pb.ServerStatus_STARTED}