Revert "Adding Node-RED Tutorial (#3352)" (#3481)

This reverts commit 2d08a1c.

Signed-off-by: James Taylor <[email protected]>

packages/composer-website/jekylldocs/tutorials/tutorials.md

@@ -18,7 +18,7 @@ We have two basic tutorial options, and one more advanced tutorial:
 
 The Playground tutorial runs through using the Playground to track the ownership of commodities in a business network.
 
-This tutorial can be followed using the web Playground (no install necessary) or with your own Playground (acquired as part of the install instructions).
+If you want to run the playground tutorial locally [install the Playground locally](../installing/using-playground-locally.html) first, then use the playground tutorial.
 
 [**Start Playground Tutorial**](../tutorials/playground-tutorial.html)
 
@@ -52,13 +52,4 @@ In this tutorial, two organization administrators configure their instances of {
 
 [**Start the multi-organization {{site.data.conrefs.hlf_full}} deployment tutorial**](../tutorials/deploy-to-fabric-multi-org.html)
 
-## Integrate with Node-RED
-
-This tutorial presumes that you have experience using {{site.data.conrefs.composer_full}} and Node-RED.
-
-This tutorial demonstrates how to integrate an existing system of record data source into the blockchain ledger with Node-RED.
-
-[**Start the multi-organization {{site.data.conrefs.hlf_full}} deployment tutorial**](../tutorials/nodered-tutorial.html)
-
-
 ---