Delete upstream workflows

This fork does not ship upstream's releases, and its hosted-runner jobs
never start here.

Claude-Session: https://claude.ai/code/session_01HuMDfgFssPUptYUzgZ6Cp8

.github/workflows/build.yml

@@ -1,23 +0,0 @@
-name: build
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go-versions: [ '1.18', '1.22', '1.24' ]
-        go-arch: [ '386' ]
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Go ${{ matrix.go-version }}
-        uses: actions/setup-go@v4
-        with:
-          go-version: ${{ matrix.go-version }}
-      - name: Build
-        run: GOARCH=${{ matrix.go-arch }} go build

.github/workflows/check.yml

@@ -1,19 +0,0 @@
-name: check
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  coverage:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Go 1.18
-        uses: actions/setup-go@v4
-        with:
-          go-version: 1.18
-      - name: Test
-        run: npx zx .github/scripts/coverage.mjs

.github/workflows/diff.yml

@@ -1,32 +0,0 @@
-name: diff
-
-on:
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  bench:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Setup Go 1.18
-        uses: actions/setup-go@v4
-        with:
-          go-version: 1.18
-      - name: Install benchstat
-        # NOTE: benchstat@latest requires go 1.23 since 2025-02-14 - this is the last go 1.18 ref
-        # https://cs.opensource.google/go/x/perf/+/c95ad7d5b636f67d322a7e4832e83103d0fdd292
-        run: go install golang.org/x/perf/cmd/benchstat@884df5810d2850d775c2cb4885a7ea339128a17d
-
-      - uses: actions/checkout@v3
-      - name: Benchmark new code
-        run: go test -bench=. -benchmem -run=^$ -count=10 -timeout=30m | tee /tmp/new.txt
-
-      - name: Checkout master
-        uses: actions/checkout@v3
-        with:
-          ref: master
-      - name: Benchmark master
-        run: go test -bench=. -benchmem -run=^$ -count=10 -timeout=30m | tee /tmp/old.txt
-
-      - name: Diff
-        run: benchstat /tmp/old.txt /tmp/new.txt

.github/workflows/fuzz.yml

@@ -1,35 +0,0 @@
-name: fuzz
-on: [pull_request]
-permissions: {}
-jobs:
-  fuzzing:
-    runs-on: ubuntu-latest
-    permissions:
-      security-events: write
-    steps:
-      - name: Build Fuzzers
-        id: build
-        uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
-        with:
-          oss-fuzz-project-name: 'expr'
-          language: 'go'
-      - name: Run Fuzzers
-        uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
-        with:
-          oss-fuzz-project-name: 'expr'
-          language: 'go'
-          fuzz-seconds: 600
-          output-sarif: true
-      - name: Upload Crash
-        uses: actions/upload-artifact@v4
-        if: failure() && steps.build.outcome == 'success'
-        with:
-          name: artifacts
-          path: ./out/artifacts
-      - name: Upload Sarif
-        if: always() && steps.build.outcome == 'success'
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          # Path to SARIF file relative to the root of the repository
-          sarif_file: cifuzz-sarif/results.sarif
-          checkout_path: cifuzz-sarif

.github/workflows/test.yml

@@ -1,44 +0,0 @@
-name: test
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go-versions: [ '1.18', '1.19', '1.20', '1.21', '1.22', '1.23', '1.24' ]
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Go ${{ matrix.go-version }}
-        uses: actions/setup-go@v4
-        with:
-          go-version: ${{ matrix.go-version }}
-      - name: Test
-        run: go test ./...
-
-  debug:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Go 1.18
-        uses: actions/setup-go@v4
-        with:
-          go-version: 1.18
-      - name: Test
-        run: go test -tags=expr_debug -run=TestDebugger -v ./vm
-
-  race:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Go 1.21
-        uses: actions/setup-go@v4
-        with:
-          go-version: 1.21
-      - name: Test
-        run: go test -race .