Remove reference to non-existent shared page

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

docs/sources/getting-started/get-started-grafana-influxdb.md

@@ -10,8 +10,6 @@ weight: 400
 
 {{< docs/shared "influxdb/intro.md" >}}
 
-{{< docs/shared "getting-started/first-step.md" >}}
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 #### Get InfluxDB
 
 You can [download InfluxDB](https://portal.influxdata.com/downloads/) and install it locally or you can sign up for [InfluxDB Cloud](https://www.influxdata.com/products/influxdb-cloud/). Windows installers are not available for some versions of InfluxDB.

docs/sources/getting-started/get-started-grafana-ms-sql-server.md

@@ -12,8 +12,6 @@ weight: 500
 
 Microsoft SQL Server is a popular relational database management system that is widely used in development and production environments. This topic walks you through the steps to create a series of dashboards in Grafana to display metrics from a MS SQL Server database. You can also configure the MS SQL Server data source on a [Grafana Cloud](/docs/grafana-cloud/) instance without having to host Grafana yourself.
 
-{{< docs/shared "getting-started/first-step.md" >}}
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 > **Note:** You must install Grafana 5.1+ in order to use the integrated MS SQL data source.
 
 #### Download MS SQL Server

docs/sources/getting-started/get-started-grafana-prometheus.md

@@ -12,8 +12,6 @@ weight: 300
 
 Prometheus is an open source monitoring system for which Grafana provides out-of-the-box support. This topic walks you through the steps to create a series of dashboards in Grafana to display system metrics for a server monitored by Prometheus.
 
-{{< docs/shared "getting-started/first-step.md" >}}
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 _Grafana and Prometheus_:
 
 1. Download Prometheus and node_exporter