fix(patient-register): resolve issue where data validation runs twice when entering exam via navigation exam button from registration

src/layouts/NavMenu.tsx

@@ -1,19 +1,15 @@
 import React, { useRef } from 'react';
 import BusinessZone from './BusinessZone';
 import SystemZone from './SystemZone';
-import { useDispatch } from 'react-redux';
-import { setBusinessFlow } from '@/states/BusinessFlowSlice';
 
 interface NavMenuProps {
   onMenuClick?: (key: string) => void;
 }
 
 const NavMenu: React.FC<NavMenuProps> = ({ onMenuClick }) => {
-  const dispatch = useDispatch();
   const systemZoneRef = useRef<HTMLDivElement>(null);
 
   const onClick = (key: string) => {
-    dispatch(setBusinessFlow(key));
     onMenuClick?.(key);
   };