docs: Remove invalid include (#604)

Author: NickLarsenNZ

docs/modules/superset/pages/getting_started/first_steps.adoc

@@ -8,9 +8,6 @@ Superset metadata (slices, connections, tables, dashboards etc.) is stored in an
 
 For testing, you can set up a PostgreSQL database with these commands:
 
-[source,bash]
-include::example$getting_started/getting_started.sh[tag=add-bitnami-repo]
-
 [source,bash]
 include::example$getting_started/getting_started.sh[tag=install-bitnami-psql]