refactor: update code and annottation in SankeyView.js and graphic

src/chart/sankey/SankeyView.js

@@ -458,8 +458,7 @@ function createGridClipShape(rect, seriesModel, cb) {
     });
     graphic.initProps(rectEl, {
         shape: {
-            width: rect.width + 20,
-            height: rect.height + 20
+            width: rect.width + 20
         }
     }, seriesModel, cb);
 

src/util/graphic.js

@@ -1124,7 +1124,7 @@ function animateOrSetProps(isUpdate, el, props, animatableModel, dataIndex, cb)
  * configuration in series.
  *
  * Caution: this method will stop previous animation.
- * So if do not use this method to one element twice before
+ * So do not use this method to one element twice before
  * animation starts, unless you know what you are doing.
  *
  * @param {module:zrender/Element} el
@@ -1150,7 +1150,7 @@ export function updateProps(el, props, animatableModel, dataIndex, cb) {
  * configuration in series.
  *
  * Caution: this method will stop previous animation.
- * So if do not use this method to one element twice before
+ * So do not use this method to one element twice before
  * animation starts, unless you know what you are doing.
  *
  * @param {module:zrender/Element} el