Remove unused checkout step from GH workflow

Author: VaiTon

.github/workflows/go.yml

@@ -39,7 +39,6 @@ jobs:
             meson_options: -Dportable=true -Db_vscrt=static_from_buildtype
 
     steps:
-      - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
           python-version: "3.10"