github/workflow: don't install git

.github/workflows/build.yaml

@@ -57,8 +57,6 @@ jobs:
           xbps-install -Syu || xbps-install -yu xbps
           # Upgrade again (in case there was a xbps update)
           xbps-install -yu
-          # Install git
-          xbps-install -y git
 
       - uses: actions/checkout@v1
         with:
@@ -71,8 +69,6 @@ jobs:
          common/travis/fetch_upstream.sh &&
          common/travis/fetch-xtools.sh
       - run: common/travis/changed_templates.sh
-      - name: Remove git after checkout to not interfere with build
-        run: xbps-remove -yR git
 
       - name: Build and check packages
         run: |