ci: remove bazel repo cache hosted in github actions cache

.github/workflows/warm-bazel-cache.yml

@@ -1,54 +0,0 @@
-name: Warm bazel cache
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "5 6 * * *" # At 06:05 every day.
-
-env:
-  CACHE_KEY: bazel
-
-permissions:
-  actions: write
-
-jobs:
-  warm-bazel-cache:
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Checkout
-        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
-        with:
-          ref: ${{ !github.event.pull_request.head.repo.fork && github.head_ref || '' }}
-
-      - name: Build common targets
-        run: |
-          bazel build \
-            //:devbuild \
-            //bazel/ci/... \
-            //bootstrapper/cmd/bootstrapper:bootstrapper_linux_amd64 \
-            //cli:cli_oss_linux_amd64 \
-            //cli:cli_oss_darwin_amd64 \
-            //debugd/cmd/cdbg:cdbg_linux_amd64 \
-            //debugd/cmd/cdbg:cdbg_darwin_amd64 \
-            //disk-mapper/cmd:disk-mapper_linux_amd64 \
-            //measurement-reader/cmd:measurement-reader_linux_amd64 \
-            //upgrade-agent/cmd:upgrade_agent_linux_amd64
-
-      - name: clear
-        continue-on-error: true
-        shell: bash
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          gh extension install actions/gh-actions-cache || true
-          gh actions-cache delete "${CACHE_KEY}" --confirm || true
-
-      - name: save
-        uses: actions/cache/save@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: |
-            ${{ github.workspace }}/tools/pseudo-version
-            /home/runner/.cache/bazel
-            /home/runner/.cache/shared_bazel_repository_cache
-            /home/runner/.cache/shared_bazel_action_cache
-          key: ${{ env.CACHE_KEY }}