refac: Remove unused variables from Example implementation (#4690)

Co-authored-by: Daniel Lu <[email protected]>

Author: ryo-manba

packages/@react-aria/tabs/docs/useTabList.mdx

@@ -101,15 +101,15 @@ function Tabs(props) {
     <div className={`tabs ${props.orientation || ''}`}>
       <div {...tabListProps} ref={ref}>
         {[...state.collection].map((item) => (
-          <Tab key={item.key} item={item} state={state} orientation={props.orientation} />
+          <Tab key={item.key} item={item} state={state} />
         ))}
       </div>
       <TabPanel key={state.selectedItem?.key} state={state} />
     </div>
   );
 }
 
-function Tab({item, state, orientation}) {
+function Tab({item, state}) {
   let {key, rendered} = item;
   let ref = React.useRef(null);
   let {tabProps} = useTab({key}, state, ref);