Revisit once playground template are finalised

.devcontainer/devcontainer.json

@@ -21,6 +21,5 @@
      "label": "Open PolkadotJS Apps",
      "type": "external-preview",
      "args": ["https://polkadot.js.org/apps/?rpc=wss%3A%2F%2F/$HOST/wss"]}
-  ],
-  "image": "paritytech/substrate-playground-template-node-template:latest"
+  ]
 }