Remove arm64 robustness workflows.

These have now migrated to prow.

Signed-off-by: James Blair <mail@jamesblair.net>

.github/workflows/robustness-nightly.yaml

@@ -1,33 +0,0 @@
----
-name: Robustness Nightly
-permissions: read-all
-on:
-  # schedules always run against the main branch, hence we have to create separate jobs
-  # with individual checkout actions for each of the active release branches
-  schedule:
-    - cron: '25 9 * * *' # runs every day at 09:25 UTC
-
-  # workflow_dispatch enables manual testing of this job by maintainers
-  workflow_dispatch:
-
-jobs:
-  main-arm64:
-    uses: ./.github/workflows/robustness-template.yaml
-    with:
-      etcdBranch: main
-      count: 150
-      testTimeout: 200m
-      artifactName: main-arm64
-      runs-on: "['actuated-arm64-12cpu-8gb']"
-      scenario: TestRobustnessExploratory
-      lazyfsEnabled: false
-  release-35-arm64:
-    uses: ./.github/workflows/robustness-template.yaml
-    with:
-      etcdBranch: release-3.5
-      count: 150
-      testTimeout: 200m
-      artifactName: release-35-arm64
-      runs-on: "['actuated-arm64-12cpu-8gb']"
-      scenario: TestRobustnessExploratory
-      lazyfsEnabled: false

.github/workflows/robustness-template.yaml

@@ -1,86 +0,0 @@
----
-name: Reusable Robustness Workflow
-on:
-  workflow_call:
-    inputs:
-      etcdBranch:
-        required: true
-        type: string
-      count:
-        required: true
-        type: number
-      testTimeout:
-        required: false
-        type: string
-        default: '30m'
-      artifactName:
-        required: true
-        type: string
-      runs-on:
-        required: false
-        type: string
-        default: "['ubuntu-latest']"
-      scenario:
-        required: true
-        type: string
-      lazyfsEnabled:
-        required: true
-        type: boolean
-permissions: read-all
-
-jobs:
-  test:
-    # this is to prevent the job to run at forked projects
-    if: github.repository == 'etcd-io/etcd'
-    timeout-minutes: 210
-    runs-on: ${{ fromJson(inputs.runs-on) }}
-    steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-      - id: goversion
-        run: echo "goversion=$(cat .go-version)" >> "$GITHUB_OUTPUT"
-      - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
-        with:
-          go-version: ${{ steps.goversion.outputs.goversion }}
-
-      # Temporary monitoring to compare amd64 and arm64 runner performance
-      # Refer: https://actuated.dev/blog/right-sizing-vms-github-actions
-      - uses: alexellis/setup-arkade@b1816384b2260cfd2c023c6798d26075786cfc7f # v3
-      - name: Install vmmeter
-        run: |
-          sudo -E arkade oci install ghcr.io/openfaasltd/vmmeter:latest --path /usr/local/bin/
-      - uses: self-actuated/vmmeter-action@c7e2162e39294a810cab647cacc215ecd68a44f6 #v1
-
-      - name: install-lazyfs
-        if: ${{ inputs.lazyfsEnabled }}
-        run: |
-          sudo apt-get -o APT::Update::Error-Mode=any update && sudo apt-get --yes install cmake libfuse3-dev libfuse3-3 fuse3
-          sudo sed -i 's/#user_allow_other/user_allow_other/g' /etc/fuse.conf
-          make install-lazyfs
-      - name: test-robustness
-        env:
-          ETCD_BRANCH: "${{ inputs.etcdBranch }}"
-        run: |
-          set -euo pipefail
-          go clean -testcache
-
-          GO_TEST_FLAGS="-v --count ${{ inputs.count }} --timeout ${{ inputs.testTimeout }} --run ${{ inputs.scenario }}"
-          case "${ETCD_BRANCH}" in
-            release-3.5)
-              EXPECT_DEBUG=true GO_TEST_FLAGS=${GO_TEST_FLAGS} RESULTS_DIR=/tmp/results make test-robustness-release-3.5
-              ;;
-            release-3.4)
-              EXPECT_DEBUG=true GO_TEST_FLAGS=${GO_TEST_FLAGS} RESULTS_DIR=/tmp/results make test-robustness-release-3.4
-              ;;
-            main)
-              EXPECT_DEBUG=true GO_TEST_FLAGS=${GO_TEST_FLAGS} RESULTS_DIR=/tmp/results make test-robustness-main
-              ;;
-            *)
-              echo "Failed to find target ${ETCD_BRANCH}"
-              exit 1
-              ;;
-          esac
-      - uses: actions/upload-artifact@89ef406dd8d7e03cfd12d9e0a4a378f454709029 # v4.3.5
-        if: always()
-        with:
-          name: ${{ inputs.artifactName }}
-          path: /tmp/results/*