Remove doc version auto-update (#8198)

the auto-update will be triggered from the doc repo after
open-telemetry/opentelemetry.io#2568

Author: trask

.github/workflows/release.yml

@@ -227,11 +227,3 @@ jobs:
       version: ${{ needs.release.outputs.version }}
     secrets:
       OPENTELEMETRYBOT_GITHUB_TOKEN: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}
-
-  create-website-pull-request:
-    needs: release
-    uses: ./.github/workflows/reusable-create-website-pull-request.yml
-    with:
-      version: ${{ needs.release.outputs.version }}
-    secrets:
-      OPENTELEMETRYBOT_GITHUB_TOKEN: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}