Remove weird repo checkout

Author: simonrw

.github/workflows/unit.yml

@@ -22,8 +22,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-        with:
-          path: repo
 
       - name: Use Node.js ${{ inputs.node-version }}
         uses: actions/setup-node@v2