Merge pull request #3442 from IgniteUI/thristodorova/fix-3436-vnext

Refactor TreeGrid row adding demo imports

Author: kacheshmarova

live-editing/configs/TreeGridConfigGenerator.ts

@@ -1072,11 +1072,9 @@ export class TreeGridConfigGenerator implements IConfigGenerator {
         configs.push(new Config({
             additionalFiles: ['/src/app/directives/prevent-scroll.directive.ts', '/src/app/tree-grid/data/employees-flat.ts', '/src/app/tree-grid/tree-grid-add-row-sample/employee.ts'],
             appModuleConfig: new AppModuleConfig({
-                imports: ['IgxPreventDocumentScrollModule', 'IgxTreeGridModule', 'TreeGridAddRowSampleComponent', 'IgxButtonModule', 'IgxDialogModule',
-                    'IgxInputGroupModule', 'IgxCheckboxModule', 'IgxDatePickerModule', 'IgxActionStripModule'],
+                imports: ['IgxPreventDocumentScrollModule', 'IgxTreeGridModule', 'TreeGridAddRowSampleComponent', 'IgxIconModule', 'IgxActionStripModule'],
                 ngDeclarations: ['TreeGridAddRowSampleComponent'],
-                ngImports: ['IgxPreventDocumentScrollModule', 'IgxTreeGridModule', 'IgxButtonModule', 'IgxDialogModule',
-                    'IgxInputGroupModule', 'IgxCheckboxModule', 'IgxDatePickerModule', 'IgxActionStripModule']
+                ngImports: ['IgxPreventDocumentScrollModule', 'IgxTreeGridModule', 'IgxIconModule', 'IgxActionStripModule']
             }),
             component: 'TreeGridAddRowSampleComponent',
             shortenComponentPathBy: '/tree-grid/'