[v11.4.x] Remove old admonition (#99828)

Co-authored-by: Irene Rodríguez <irene.rodriguez@grafana.com>

docs/sources/setup-grafana/image-rendering/_index.md

@@ -20,8 +20,6 @@ weight: 1000
 
 Grafana supports automatic rendering of panels as PNG images. This allows Grafana to automatically generate images of your panels to include in alert notifications, [PDF export]({{< relref "../../dashboards/create-reports#export-dashboard-as-pdf" >}}), and [Reporting]({{< relref "../../dashboards/create-reports" >}}). PDF Export and Reporting are available only in [Grafana Enterprise]({{< relref "../../introduction/grafana-enterprise" >}}) and [Grafana Cloud](/docs/grafana-cloud/).
 
-> **Note:** Image rendering of dashboards is not supported at this time.
-
 While an image is being rendered, the PNG image is temporarily written to the file system. When the image is rendered, the PNG image is temporarily written to the `png` folder in the Grafana `data` folder.
 
 A background job runs every 10 minutes and removes temporary images. You can configure how long an image should be stored before being removed by configuring the [temp_data_lifetime]({{< relref "../configure-grafana#temp_data_lifetime" >}}) setting.