Remove useless menu

src/App.js

@@ -92,15 +92,8 @@ function handleRoomSelected(id)
 export default function App() {
   const [selectedRoom, setSelectedRoom] = React.useState(null);
 
-  function selectAmphiB() {
-    setSelectedRoom("salle-M-GN1-3-av");
-  }
-
   return <>
     <TopBar />
-    <Button onClick={selectAmphiB}>Amphi B</Button>
-    <Button>Salle : {selectedRoom}</Button>
-
     <div style={{ flexGrow: '1', display: 'flex', flexDirection: 'line', flexWrap: 'nowrap' }}>
       <Map callbackRoomSelected={handleRoomSelected} selectedRoom={selectedRoom}/>
       <RoomResearch callbackRoomSelected={setSelectedRoom}/>