Problem description: In case if there is an error displayed on the SVG graph widget, then a non-required horizontal scroll appears in this widget:

Steps to reproduce (6.0, 6.2):

1. Create a dashboard with a graph widget
2. Open ui/app/controllers/CControllerWidgetSvgGraphView.php file
3. Add "error('Error text');" line in the beginning of the doAction() method (the easiest was to get an error)
4. Check the display of the graph widget

Steps to reproduce (6.4, 7.0):

1. Create a dashboard with a graph widget and a URL widget
2. Open the manifest file of the URL widget (located in ui/widgets/url/manifest.json)
3. Change the value of the ID field
4. Check the display of the graph widget

Result: a horizontal scroll bar is observed on he widget.
Expected: there should be no horizontal scroll bar on the graph widget.