update dev container

.devcontainer/devcontainer.json

@@ -2,16 +2,13 @@
 // https://github.com/microsoft/vscode-dev-containers/tree/v0.192.0/containers/docker-in-docker
 {
 	"name": "Acala",
-	"overrideCommand": false,
 	"build": {
 		"dockerfile": "Dockerfile",
 	},
 	"features": {
 		"ghcr.io/devcontainers/features/docker-in-docker:2": {}
 	},
-
 	"customizations": {
-		// Set *default* container specific settings.json values on container create.
 		"settings": {
 			"lldb.executable": "/usr/bin/lldb",
 			// VS Code don't watch files under ./target
@@ -20,7 +17,6 @@
 			},
 			"rust-analyzer.checkOnSave.command": "clippy"
 		},
-		// Add the IDs of extensions you want installed when the container is created.
 		"extensions": [
 			"ms-azuretools.vscode-docker",
 			"vadimcn.vscode-lldb",
@@ -30,13 +26,6 @@
 			"serayuzgur.crates"
 		]
 	},
-
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	"forwardPorts": [30333, 9944],
-
-	// Use 'postCreateCommand' to run commands after the container is created.
-	// "postCreateCommand": "docker --version",
-
-	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "vscode"
 }