FIX,IMPRO,REFA: removed shape invokation on border constructor

the "default" value would always override the border-shape
that might be set in the component earlier by the clip() function.

src/decorators/border.js

@@ -77,13 +77,12 @@ const Define = Object.freeze({
  * @extends Sides
  */
 class Border extends Sides {
-    constructor(width = 0, color = Colors.black, style = LineStyles.solid, defaultUnit = SizeUnits.PIXEL, shape = Shapes.Rectangle) {
+    constructor(width = 0, color = Colors.black, style = LineStyles.solid, defaultUnit = SizeUnits.PIXEL) {
         super('border', 0, defaultUnit);
         this._fFirst = new BorderDefinition(width, color, style);
         this._fSecond = new BorderDefinition(width, color, style);
         this._fThird = new BorderDefinition(width, color, style);
         this._fForth = new BorderDefinition(width, color, style);
-        this._shape = shape;
     }
 
     setByIndex(index, value) {