diff --git a/.github/workflows/clang_tidy.yaml b/.github/workflows/clang_tidy.yaml
deleted file mode 100644
index d23c0f47a759..000000000000
--- a/.github/workflows/clang_tidy.yaml
+++ /dev/null
@@ -1,80 +0,0 @@
-# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
-# Exceptions. See /LICENSE for license information.
-# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-
-name: 'Clang Tidy'
-
-on:
-  push:
-    branches: [trunk, action-test]
-  pull_request:
-  merge_group:
-
-permissions:
-  contents: read # For actions/checkout.
-  pull-requests: read # For dorny/paths-filter to read pull requests.
-
-# Cancel previous workflows on the PR when there are multiple fast commits.
-# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  clang-tidy:
-    runs-on: ubuntu-22.04
-
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
-        with:
-          egress-policy: block
-          # When adding endpoints, see README.md.
-          # prettier-ignore
-          allowed-endpoints: >
-            *.dl.sourceforge.net:443
-            api.github.com:443
-            bcr.bazel.build:443
-            downloads.sourceforge.net:443
-            github.com:443
-            mirrors.kernel.org:443
-            nodejs.org:443
-            oauth2.googleapis.com:443
-            objects.githubusercontent.com:443
-            pypi.org:443
-            releases.bazel.build:443
-            sourceforge.net:443
-            storage.googleapis.com:443
-
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-
-      - id: test-setup
-        uses: ./.github/actions/test-setup
-        with:
-          matrix_runner: 'ubuntu-22.04'
-          base_sha:
-            ${{ github.event_name == 'pull_request' &&
-            github.event.pull_request.base.sha ||
-            github.event.merge_group.base_sha }}
-          remote_cache_key: ${{ secrets.CARBON_BUILDS_GITHUB }}
-          targets_file: ${{ runner.temp }}/targets
-          use_direct_targets: true
-
-      # Run in the clang-tidy config. This is done as part of tests so that we
-      # aren't duplicating bazel/llvm setup.
-      #
-      # The `-k` flag is used to print all clang-tidy errors.
-      - name: clang-tidy
-        if: steps.test-setup.outputs.has_code == 'true'
-        env:
-          TARGETS_FILE: ${{ runner.temp }}/targets
-        run: |
-          ./scripts/run_bazel.py \
-              --attempts=5 \
-              build --config=clang-tidy -k \
-              --target_pattern_file=$TARGETS_FILE
-
-      # See "Disk space before build" in `test-setup`.
-      - name: Disk space after build
-        if: steps.test-setup.outputs.has_code == 'true'
-        run: df -h