fix(service-party-app): remove password validation in transfer form

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/mpc-system/services/service-party-app/src/pages/Transfer.tsx

@@ -143,11 +143,6 @@ export default function Transfer() {
       return false;
     }
 
-    if (!password) {
-      setError('请输入钱包密码');
-      return false;
-    }
-
     setError('');
     return true;
   };