Remove unnecessary code

components/Navbar.tsx

@@ -201,11 +201,9 @@ function reducer(state: MobileState, action: MobileAction): MobileState {
 interface NavItemProps {
   name: string;
   route: string;
-  hasSubsections?: boolean;
   submenu?: {
     name: string;
     route: string;
-    hasSubsections?: boolean;
   }[];
   mainRouteActive: boolean;
   onToggle(route: string): void;
@@ -276,7 +274,6 @@ function NavItem(props: NavItemProps) {
                   <NavItem
                     name={item.name}
                     route={item.route}
-                    hasSubsections={item.hasSubsections}
                     mainRouteActive={props.mainRouteActive}
                     onClose={() => props.onClose()}
                     onToggle={(route) => props.onToggle(route)}