Remove host mapping step from workflow

.github/workflows/main.yml

@@ -24,15 +24,6 @@ jobs:
       contents: read
       packages: write
     steps:
-      - name: Add git.wylab.me host mapping
-        run: |
-          if ! grep -q "$HOST_NAME" /etc/hosts; then
-            echo "$HOST_IP $HOST_NAME" | sudo tee -a /etc/hosts
-          fi
-        env:
-          HOST_IP: 172.17.0.3
-          HOST_NAME: git.wylab.me
-
       - name: Checkout repository
         uses: actions/checkout@v4