Cleanup.

src/renderer/renderer.rs

@@ -600,8 +600,7 @@ impl<'a> DustRenderer<'a> {
                                 )
                             })
                             .any(|check_result| check_result.unwrap_or(false));
-                        let mut select_context =
-                            SelectContext::new(&param_map, are_any_checks_true);
+                        let select_context = SelectContext::new(&param_map, are_any_checks_true);
                         return self.render_maybe_body(
                             &parameterized_block.contents,
                             new_breadcrumbs_ref,