move fmt.Sprintf for machineType to inline

Author: dannawang0221

test/remote/instance.go

@@ -94,7 +94,7 @@ func (i *InstanceInfo) CreateOrGetInstance(imageURL, serviceAccount string) erro
 
 	inst := &compute.Instance{
 		Name:        i.name,
-		MachineType: machineType(i.zone, i.machineType),
+		MachineType: fmt.Sprintf("zones/%s/machineTypes/%s", i.zone, i.machineType),
 		NetworkInterfaces: []*compute.NetworkInterface{
 			{
 				AccessConfigs: []*compute.AccessConfig{
@@ -215,10 +215,6 @@ func getTimestamp() string {
 	return fmt.Sprintf(time.Now().Format(timestampFormat))
 }
 
-func machineType(zone, machineType string) string {
-	return fmt.Sprintf("zones/%s/machineTypes/%s", zone, machineType)
-}
-
 // Create default SSH filewall rule if it does not exist
 func (i *InstanceInfo) createDefaultFirewallRule() error {
 	var err error