Remove devcontainer due to clab limitation

.devcontainer/devcontainer.json

@@ -1,26 +0,0 @@
-{
-	"name": "ContainerLab",
-    "dockerComposeFile": "docker-compose.yml",
-    "service": "containerlab",
-
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	"forwardPorts": [50080],
-
-	// Mount worspace on container
-	"workspaceFolder": "/workspace",
-
-	// Import ceos images
-	"postCreateCommand": "docker import network_images/cEOS64-lab-4.31.1F.tar.xz ceos:4.31.1F",
-
-	// Configure properties specific to VS Code.
-	"customizations": {
-		"vscode": {
-			"extensions": [
-				"ms-vscode-remote.vscode-remote-extensionpack",
-				"ms-azuretools.vscode-docker",
-				"ms-python.python",
-				"DavidAnson.vscode-markdownlint"
-			]
-		}
-	}
-}