Remove stale devcontainer

[rynowak]

Description

This change removes our old outdated and unused devcontainer.

• There's another devcontainer definition in our repo and it's much more useful for developing Radius.
• There's another devcontainer definition in our samples repo that's useful for trying out Radius.

Part-of: #6923

• This pull request is a minor refactor, code cleanup, test improvement, or other maintenance task and doesn't change the functionality of Radius (issue link optional).

Auto-generated summary

🤖[deprecated] Generated by Copilot at b102f3f

Summary

📱🛠️🌐

Removed unused files related to tutorials-codespace from .devcontainer folder. These files were not needed for the radius project and were causing confusion and clutter.

is_valid checks
refactored for clarity
autumn leaves falling

Walkthrough

• Remove files related to tutorials-codespace devcontainer (link, link, link, link)

[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Name	Value
Repository	rynowak/radius
Commit ref	a339130
Unique ID	1d709b7fd4
Image tag	pr-1d709b7fd4

Click here to see the list of tools in the current test run

• gotestsum 1.10.0
• KinD: v0.20.0
• Dapr: 1.12.0
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.1.0
• Bicep recipe location ghcr.io/radius-project/dev/test/functional/shared/recipes/<name>:pr-1d709b7fd4
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-1d709b7fd4
• controller test image location: ghcr.io/radius-project/dev/controller:pr-1d709b7fd4
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-1d709b7fd4
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
✅ Recipe publishing succeeded
⌛ Starting daprrp functional tests...
⌛ Starting ucp functional tests...
⌛ Starting samples functional tests...
⌛ Starting msgrp functional tests...
⌛ Starting kubernetes functional tests...
⌛ Starting datastoresrp functional tests...
✅ ucp functional tests succeeded
✅ msgrp functional tests succeeded
✅ samples functional tests succeeded
✅ daprrp functional tests succeeded
✅ kubernetes functional tests succeeded
✅ datastoresrp functional tests succeeded
✅ shared functional tests succeeded