Remove the unused TRL dev Docker image

.github/workflows/docker-build.yml

@@ -60,36 +60,3 @@ jobs:
           slack_channel: ${{ env.CI_SLACK_CHANNEL }}
           title: 🤗 Results of the TRL Docker Image build
           slack_token: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }}
-
-  trl-dev:
-    name: "Build and push TRL Dev Docker image"
-    runs-on:
-      group: aws-general-8-plus
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e  # v4.3.0
-
-      - name: Login to DockerHub
-        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f  # v4.6.0
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
-
-      - name: Build and Push
-        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a  # v7.3.0
-        with:
-          context: docker/trl-dev
-          push: true
-          tags: |
-            huggingface/trl:dev
-
-      - name: Post to Slack
-        if: always()
-        uses: ./.github/actions/post-slack
-        with:
-          slack_channel: ${{ env.CI_SLACK_CHANNEL }}
-          title: 🤗 Results of the TRL Dev Docker Image build
-          slack_token: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }}