Remove misleading information about tctl for Cloud

The Enterprise version of tctl is only required for SSO connectors.
I've removed instructions to download this in the context of tctl for
Cloud users.

docs/pages/includes/database-access/start-auth-proxy.mdx

@@ -46,10 +46,6 @@ If you do not have a Teleport Cloud account, use our [signup form](https://gotel
 get started. Teleport Cloud manages instances of the Proxy Service and Auth
 Service, and automatically issues and renews the required TLS certificate.
 
-You will need to download the Enterprise version of Teleport from the
-[customer portal](https://dashboard.gravitational.com/web/login) to run `tctl`
-commands in Teleport Cloud.
-
 You must log into your cluster before you can run `tctl` commands.
 ```code
 $ tsh login --proxy=mytenant.teleport.sh

docs/pages/kubernetes-access/getting-started/agent.mdx

@@ -54,14 +54,15 @@ description: Connecting a Kubernetes cluster to Teleport
 - The `jq` tool to process `JSON` output. This is available via common package
   managers.
 
-- The Enterprise version of the `tctl` admin tool. To download this, visit
-the [customer portal](https://dashboard.gravitational.com/web/login).
+- The `tctl` admin tool version >= (=teleport.version=).
 
   ```code
   $ tctl version
   # Teleport v(=teleport.version=) go(=teleport.golang=)
   ```
 
+  See [Installation](../../installation.mdx) for details.
+
   (!docs/pages/includes/tctl.mdx!)
 
 </TabItem>

docs/pages/kubernetes-access/guides/multiple-clusters.mdx

@@ -53,14 +53,15 @@ This guide will show you how to use Teleport as an access plane for multiple Kub
 - The `jq` tool to process `JSON` output. This is available via common package
   managers
 
-- The Enterprise version of the `tctl` admin tool. To download this, visit
-the [customer portal](https://dashboard.gravitational.com/web/login)
+- The `tctl` admin tool version >= (=teleport.version=).
 
   ```code
   $ tctl version
   # Teleport v(=teleport.version=) go(=teleport.golang=)
   ```
 
+  See [Installation](../../installation.mdx) for details.
+
   (!docs/pages/includes/tctl.mdx!)
 
 - An additional Kubernetes cluster version >=

docs/pages/kubernetes-access/guides/standalone-teleport.mdx

@@ -56,14 +56,15 @@ Teleport needs a `kubeconfig` file to authenticate against the Kubernetes API.
 - A host deployed on your own infrastructure to run the Teleport Kubernetes
   Service. See [Installing Teleport](../../installation.mdx) for more details.
 
-- **Optional:** the Enterprise version of the `tctl` admin tool. To download this, visit
-the [customer portal](https://dashboard.gravitational.com/web/login).
+- **Optional:** The `tctl` admin tool version >= (=teleport.version=).
 
   ```code
   $ tctl version
   # Teleport v(=teleport.version=) go(=teleport.golang=)
   ```
 
+  See [Installation](../../installation.mdx) for details.
+
   (!docs/pages/includes/tctl.mdx!)
 
 </TabItem>

docs/pages/setup/guides/fluentd.mdx

@@ -53,14 +53,15 @@ In this guide, we will explain how to:
 - A Teleport Cloud account. If you do not have one, visit the
   [sign up page](https://goteleport.com/signup/) to begin your free trial.
 
-- The Enterprise version of the `tctl` admin tool. To download this, visit
-the [customer portal](https://dashboard.gravitational.com/web/login).
+- The `tctl` admin tool version >= (=teleport.version=).
 
   ```code
   $ tctl version
   # Teleport v(=teleport.version=) go(=teleport.golang=)
   ```
 
+  See [Installation](../../installation.mdx) for details.
+
   (!docs/pages/includes/tctl.mdx!)
 
 </TabItem>