feature/issue4-remove-proxy-country-list: minor ci fix

Author: megabotan

.github/workflows/code_checks.yaml

@@ -7,7 +7,6 @@ jobs:
     strategy:
       matrix:
         pyver: [ 3.6, 3.7, 3.8, 3.9 ]
-        no-extensions: [ '', 'Y' ]
         os: [ ubuntu, macos, windows ]
       fail-fast: true
     runs-on: ${{ matrix.os }}-latest