#30347 : fix js error on delete bundle options

Author: sunilit42

app/code/Magento/Bundle/view/adminhtml/web/js/components/bundle-dynamic-rows.js

@@ -72,7 +72,7 @@ define([
          */
         removeBundleItemsFromOption: function (index) {
             var bundleSelections = registry.get(this.name + '.' + index + '.' + this.bundleSelectionsName),
-                bundleSelectionsLength = (bundleSelections.elems() || []).length,
+                bundleSelectionsLength = bundleSelections ? (bundleSelections.elems() || []).length:[],
                 i;
 
             if (bundleSelectionsLength) {