Drop CodeQL scan from cxx test

Scan keeps failing with
"CodeQL detected code written in C/C++ but this run didn't build any of it",
might be a toolchain issue

Author: Horolsky

.github/workflows/test-and-scan-backends.yml

@@ -37,12 +37,6 @@ jobs:
         run: |
             bazel --version
 
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4
-        with:
-          languages: c-cpp
-          build-mode: manual
-
       - name: Run all tests
         shell: bash
         run: |
@@ -61,11 +55,6 @@ jobs:
           name: test-logs-backends-cxx
           path: bazel-testlogs/zmbt-framework/backends/cxx/test/**/*.log
 
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4
-        with:
-          category: "/language:c-cpp"
-
   publish-test-results:
     needs: test-and-scan-backends
     runs-on: ubuntu-latest