diff --git a/.github/actions/setup-swift/action.yml b/.github/actions/setup-swift/action.yml
deleted file mode 100644
index 374eb207b..000000000
--- a/.github/actions/setup-swift/action.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: "Set up Swift on Linux"
-description: Sets up an appropriate Swift version on Linux.
-inputs:
-  codeql-path:
-    description: Path to the CodeQL CLI executable.
-    required: true
-runs:
-  using: "composite"
-  steps:
-    - name: Get Swift version
-      id: get_swift_version
-      if: runner.os == 'Linux'
-      shell: bash
-      env:
-        CODEQL_PATH: ${{ inputs.codeql-path }}
-      run: |
-        SWIFT_EXTRACTOR_DIR="$("$CODEQL_PATH" resolve languages --format json | jq -r '.swift[0]')"
-        if [ $SWIFT_EXTRACTOR_DIR = "null" ]; then
-          VERSION="null"
-        else
-          VERSION="$("$SWIFT_EXTRACTOR_DIR/tools/linux64/extractor" --version | awk '/version/ { print $3 }')"
-          # Specify 5.x.0, otherwise setup Action will default to latest minor version.
-          if [ $VERSION = "5.7" ]; then
-            VERSION="5.7.0"
-          elif [ $VERSION = "5.8" ]; then
-            VERSION="5.8.0"
-          elif [ $VERSION = "5.9" ]; then
-            VERSION="5.9.0"
-          # setup-swift does not yet support v5.9.1 Remove this when it does.
-          elif [ $VERSION = "5.9.1" ]; then
-            VERSION="5.9.0"
-          fi
-        fi
-        echo "version=$VERSION" | tee -a $GITHUB_OUTPUT
-
-    - uses: redsun82/setup-swift@362f49f31da2f5f4f851657046bdd1290d03edc8 # Please update the corresponding SHA in the CLI's CodeQL Action Integration Test.
-      if: runner.os == 'Linux' && steps.get_swift_version.outputs.version != 'null'
-      with:
-        swift-version: "${{ steps.get_swift_version.outputs.version }}"