DEVX-152: fix: remove dead translation keys and add missing one

Co-authored-by: emil User <emil.simeonov@tutanota.com>

tests/unit/test_cli.py

@@ -40,7 +40,6 @@ class TestCliGroups:
         result = runner.invoke(cli, ["molecule", "--help"])
         assert result.exit_code == 0
         assert "distribute" in result.output
-        assert "guard" in result.output
         assert "all" in result.output
 
 
@@ -231,13 +230,6 @@ class TestMoleculeCommands:
         assert result.exit_code == 0
         mock_run.assert_called_once_with("devx.molecule.discover_runners", [])
 
-    @patch("devx.cli._run_module")
-    def test_molecule_guard(self, mock_run: MagicMock) -> None:
-        runner = CliRunner()
-        result = runner.invoke(cli, ["molecule", "guard"])
-        assert result.exit_code == 0
-        mock_run.assert_called_once_with("devx.molecule.molecule_ci_guard", [])
-
     @patch("devx.cli._run_module")
     def test_molecule_all(self, mock_run: MagicMock) -> None:
         runner = CliRunner()