Remove OperatorHub automation and documentation (#2101)

AWX Operator is no longer published to OperatorHub. Remove the
publish-operator-hub GHA workflow, the hack/publish-to-operator-hub.sh
script, the OperatorHub section from the release process docs, and the
OperatorHub-specific resource list from the debugging guide.

Author: Christian M. Adams
Assisted By: Claude

.github/workflows/publish-operator-hub.yaml

@@ -1,86 +0,0 @@
-name: Publish AWX Operator on operator-hub
-on:
-  release:
-    types: [published]
-  workflow_dispatch:
-    inputs:
-      tag_name:
-        description: 'Name for the tag of the release.'
-        required: true
-      operator_hub_fork:
-        description: 'Fork of operator-hub where the PR will be created from. default: awx-auto'
-        required: true
-        default: 'awx-auto'
-      image_registry:
-        description: 'Image registry where the image is published to. default: quay.io'
-        required: true
-        default: 'quay.io'
-      image_registry_organization:
-        description: 'Image registry organization where the image is published to. default: ansible'
-        required: true
-        default: 'ansible'
-      community_operator_github_org:
-        description: 'Github organization for community-opeartor project. default: k8s-operatorhub'
-        required: true
-        default: 'k8s-operatorhub'
-      community_operator_prod_github_org:
-        description: 'GitHub organization for community-operator-prod project. default: redhat-openshift-ecosystem'
-        required: true
-        default: 'redhat-openshift-ecosystem'
-jobs:
-  promote:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set GITHUB_ENV from workflow_dispatch event
-        if: ${{ github.event_name == 'workflow_dispatch' }}
-        run: |
-          echo "VERSION=${{ github.event.inputs.tag_name }}" >> $GITHUB_ENV
-          echo "IMAGE_REGISTRY=${{ github.event.inputs.image_registry }}" >> $GITHUB_ENV
-          echo "IMAGE_REGISTRY_ORGANIZATION=${{ github.event.inputs.image_registry_organization }}" >> $GITHUB_ENV
-          echo "COMMUNITY_OPERATOR_GITHUB_ORG=${{ github.event.inputs.community_operator_github_org }}" >> $GITHUB_ENV
-          echo "COMMUNITY_OPERATOR_PROD_GITHUB_ORG=${{ github.event.inputs.community_operator_prod_github_org }}" >> $GITHUB_ENV
-
-      - name: Set GITHUB_ENV for release event
-        if: ${{ github.event_name == 'release' }}
-        run: |
-          echo "VERSION=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
-          echo "IMAGE_REGISTRY=quay.io" >> $GITHUB_ENV
-          echo "IMAGE_REGISTRY_ORGANIZATION=ansible" >> $GITHUB_ENV
-          echo "COMMUNITY_OPERATOR_GITHUB_ORG=k8s-operatorhub" >> $GITHUB_ENV
-          echo "COMMUNITY_OPERATOR_PROD_GITHUB_ORG=redhat-openshift-ecosystem" >> $GITHUB_ENV
-
-      - name: Log in to image registry
-        run: |
-          echo ${{ secrets.QUAY_TOKEN }} | docker login ${{ env.IMAGE_REGISTRY }} -u ${{ secrets.QUAY_USER }} --password-stdin
-
-      - name: Checkout awx-operator at workflow branch
-        uses: actions/checkout@v4
-        with:
-          path: awx-operator
-
-      - name: Checkout awx-opearator at ${{ env.VERSION }}
-        uses: actions/checkout@v4
-        with:
-          fetch-tags: true
-          ref: ${{ env.VERSION }}
-          path: awx-operator-${{ env.VERSION }}
-          fetch-depth: 0  # fetch all history so that git describe works
-
-      - name: Copy scripts to awx-operator-${{ env.VERSION }}
-        run: |
-          cp -f \
-            awx-operator/hack/publish-to-operator-hub.sh \
-            awx-operator-${{ env.VERSION }}/hack/publish-to-operator-hub.sh
-          cp -f \
-            awx-operator/Makefile \
-            awx-operator-${{ env.VERSION }}/Makefile
-
-      - name: Build and publish bundle to operator-hub
-        working-directory: awx-operator-${{ env.VERSION }}
-        env:
-          IMG_REPOSITORY: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_REGISTRY_ORGANIZATION }}
-          GITHUB_TOKEN: ${{ secrets.AWX_AUTO_GITHUB_TOKEN }}
-        run: |
-          git config --global user.email "awx-automation@redhat.com"
-          git config --global user.name "AWX Automation"
-          ./hack/publish-to-operator-hub.sh