ci: drop base_install for CFL

No longer needed and we shouldn't be overriding build tools.

Author: Sjors

.clusterfuzzlite/cfl-common.sh

@@ -6,12 +6,9 @@ export LC_ALL=C
 set -o errexit -o nounset -o pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-# shellcheck source=cfl-common.sh
-source "${SCRIPT_DIR}/cfl-common.sh"
 
 if [ "${1:-}" = "" ] || [ "${2:-}" = "" ]; then
-  echo "Usage: $0 <operation> <sanitizer>" >&2
-  echo "  Supported operations: base-install, detect-symbolizer" >&2
+  echo "Usage: $0 detect-symbolizer <sanitizer>" >&2
   exit 1
 fi
 
@@ -21,7 +18,6 @@ shift 2 || true
 
 # Resolve repository root for Docker volume mounting.
 ROOT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
-APT_VER="$(cfl_apt_llvm_version)"
 
 mkdir -p "${ROOT_DIR}/.cfl-base"
 
@@ -51,19 +47,6 @@ ensure_image_cached() {
 }
 
 case "${operation}" in
-  base-install)
-    packages="$(cfl_packages_for_sanitizer "${sanitizer}")"
-    CI_RETRY_EXE_CMD='bash ./ci/retry/retry --'
-    image='gcr.io/oss-fuzz-base/clusterfuzzlite-build-fuzzers:v1'
-    ensure_image_cached "$image"
-    docker run \
-      "${docker_common[@]}" \
-      -e "APT_LLVM_V=${APT_VER}" \
-      -e "PACKAGES=${packages}" \
-      -e "CI_RETRY_EXE=${CI_RETRY_EXE_CMD}" \
-      "$image" \
-      -lc './ci/test/01_base_install.sh'
-    ;;
   detect-symbolizer)
     image='ghcr.io/sjors/clusterfuzzlite-run-fuzzers:llvm-22-debug'
     ensure_image_cached "$image"
@@ -77,4 +60,4 @@ case "${operation}" in
     echo "Unknown operation: ${operation}" >&2
     exit 1
     ;;
- esac
+esac

.clusterfuzzlite/run-cfl-helper.sh

@@ -33,7 +33,6 @@ jobs:
     with:
       job_name: Coverage
       sanitizers_json: '{"sanitizer":["coverage"]}'
-      run_base_install: false
       run_mode: coverage
       fuzz_seconds: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.fuzz_seconds != '' && fromJSON(github.event.inputs.fuzz_seconds) || 600 }}
       output_sarif: true

.github/workflows/clusterfuzzlite-cron.yml

@@ -24,9 +24,6 @@ on:
       upload_build:
         type: boolean
         default: false
-      run_base_install:
-        type: boolean
-        default: true
     secrets:
       PERSONAL_ACCESS_TOKEN:
         required: false
@@ -51,11 +48,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: ClusterFuzzLite base install (${{ matrix.sanitizer }})
-        if: ${{ inputs.run_base_install }}
-        run: ./.clusterfuzzlite/run-cfl-helper.sh base-install "${{ matrix.sanitizer }}"
-        shell: bash
-
       - name: Build fuzzers (${{ matrix.sanitizer }})
         uses: Sjors/clusterfuzzlite/actions/build_fuzzers@2025/10/clang-22
         with: