don't bust cache when autorefreshing a dashboard (#10608)

frontend/src/metabase/dashboard/hoc/DashboardControls.jsx

@@ -190,7 +190,6 @@ export default (ComposedComponent: ReactClass<any>) =>
           this.props.fetchDashboardCardData({
             reload: true,
             clear: false,
-            ignoreCache: true,
           });
         } else {
           this.setState({ refreshElapsed });