Remove clone function (unused)

morphic.js

@@ -1242,16 +1242,6 @@ function getDocumentPositionOf(aDOMelement) {
     return pos;
 }
 
-function clone(target) {
-    // answer a new instance of target's type
-    if (typeof target === 'object') {
-        var Clone = function () {nop(); };
-        Clone.prototype = target;
-        return new Clone();
-    }
-    return target;
-}
-
 function copy(target) {
     // answer a shallow copy of target
     var value, c, property;

objects.js

@@ -105,7 +105,7 @@ InspectorMorph, ListMorph, Math, MenuItemMorph, MenuMorph, Morph,
 MorphicPreferences, MouseSensorMorph, Node, Object, PenMorph, Point,
 Rectangle, ScrollFrameMorph, ShadowMorph, SliderButtonMorph,
 SliderMorph, String, StringFieldMorph, StringMorph, TextMorph,
-TriggerMorph, WorldMorph, clone, contains, copy, degrees, detect,
+TriggerMorph, WorldMorph, contains, copy, degrees, detect,
 document, getDocumentPositionOf, isNaN, isObject, isString, newCanvas,
 nop, parseFloat, radians, standardSettings, touchScreenSettings,
 useBlurredShadows, version, window, modules, IDE_Morph, VariableDialogMorph,