Revert "Added new kb article grid-handle-empty-popup-footer (#2414)"

This reverts commit 5958601.

Author: ntacheva

components/grid/templates/popup-form-template.md

@@ -27,8 +27,7 @@ With the `FormTemplate` feature, you can customize the appearance and content of
 ## Specifics
 
 When using the template, the default Popup form is replaced by the declared content within the `FormTemplate` tag. This introduces the following specifics:
-* The default **Update** and **Cancel** buttons are removed. This means that the [`OnUpdate` and `OnCancel`]({%slug components/grid/editing/overview%}#events) events cannot be triggered. To modify or cancel the update of a record, you need to include custom controls to manage these actions. 
-* The popup footer remains empty by design. You can [either hide it or place your custom buttons in it]({%slug grid-kb-handle-empty-popup-footer%}).
+* The default **Update** and **Cancel** buttons are removed. This means that the [`OnUpdate` and `OnCancel`]({%slug components/grid/editing/overview%}#events) events cannot be triggered. To modify or cancel the update of a record, you need to include custom controls to manage these actions.
 * The `FormTemplate` disables the [built-in validation]({%slug grid-editing-validation%}) of the Grid. Implement a [Form Validation]({%slug form-validation%}) instead.
 * The [`<GridPopupEditFormSettings>` parameters]({%slug components/grid/editing/popup%}#edit-form-customization) do not apply to a custom `TelerikForm` that you may render inside the `<FormTemplate>` tag. Set the desired Form configurations such as `Columns`, `Orientation`, and more on the [Form component]({%slug form-overview%}#form-parameters).