codeql workflow: remove step per warning
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index a276cc0..696b1fa 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,11 +36,6 @@
# a pull request then we can checkout the head.
fetch-depth: 2
- # If this run was triggered by a pull request event, then checkout
- # the head of the pull request instead of the merge commit.
- - run: git checkout HEAD^2
- if: ${{ github.event_name == 'pull_request' }}
-
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v1