clean up action checkout for sbumodules

.github/workflows/build.yml

@@ -46,11 +46,8 @@ jobs:
       uses: actions/checkout@v2
     
     - name: Checkout Submodules
-      shell: bash
       run: |
-        #auth_header="$(git config --local --get http.https://github.com/.extraheader)"
         git submodule sync --recursive
-        #git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive
         git submodule update --init --recursive
     
     - name: Build