ci: remove duplicate codeql steps

Author: KeelMatrix

.github/workflows/ci.yml

@@ -145,14 +145,6 @@ jobs:
         run: dotnet format --verify-no-changes
       - name: Check for vulnerable dependencies
         run: dotnet list KeelMatrix.QueryWatch.sln package --vulnerable --include-transitive
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4
-        with:
-          languages: csharp
-      - name: Build for CodeQL
-        uses: github/codeql-action/autobuild@v4
-      - name: Analyze with CodeQL
-        uses: github/codeql-action/analyze@v4
   perf-bench:
     if: (github.event_name == 'pull_request' || github.ref == 'refs/heads/main') && github.actor != 'dependabot[bot]'
     needs: test