chore: cleanup template features (#2)

* chore: remove `color` sample feature

Remove template feature and tests

* chore: remove `hello` sample feature

- remove template feature and tests
- update references in `go-mod-cache` feature

Author: panz3r

.github/workflows/test.yaml

@@ -14,8 +14,6 @@ jobs:
       matrix:
         features:
           - go-mod-cache
-          - color
-          - hello
         baseImage:
           - debian:latest
           - ubuntu:latest
@@ -36,8 +34,6 @@ jobs:
       matrix:
         features:
           - go-mod-cache
-          - color
-          - hello
     steps:
       - uses: actions/checkout@v4
 

src/color/README.md

@@ -22,4 +22,4 @@ Mounts the Go Module cache (`GOMODCACHE`) to a Docker Volume to share between mu
 
 ---
 
-_Note: This file was auto-generated from the [devcontainer-feature.json](https://github.com/devcontainers/feature-starter/blob/main/src/hello/devcontainer-feature.json).  Add additional notes to a `NOTES.md`._
+_Note: This file was auto-generated from the [devcontainer-feature.json](https://github.com/devcontainers/feature-starter/blob/main/src/go-mod-cache/devcontainer-feature.json).  Add additional notes to a `NOTES.md`._