util.go

@@ -87,7 +87,6 @@ func (v *sliceValue) String() string {
 	return v.def
 }
 
-
 func (v *sliceValue) Get() interface{} {
 	return v.v.Interface()
 }
@@ -407,19 +406,3 @@ func getFlagOpts(tf string) (string, string, string) {
 	}
 	return name, desc, def
 }
-
-
-
-func isZeroValue(f *flag.Flag, value string) bool {
-	// Build a zero value of the flag's Value type, and see if the
-	// result of calling its String method equals the value passed in.
-	// This works unless the Value type is itself an interface type.
-	typ := reflect.TypeOf(f.Value)
-	var z reflect.Value
-	if typ.Kind() == reflect.Pointer {
-		z = reflect.New(typ.Elem())
-	} else {
-		z = reflect.Zero(typ)
-	}
-	return value == z.Interface().(flag.Value).String()
-}