remove unnecessary lines

src/client/js/components/CustomNavigation.jsx

@@ -41,12 +41,10 @@ const CustomNavigation = (props) => {
       return;
     }
 
-
     if (navBar == null || navTabs == null) {
       return;
     }
 
-
     let tempML = 0;
 
     const styles = Object.entries(navTabs).map((el) => {