feat(ui/modules/Common/SearchBox): remove useless code

linphone-desktop/ui/modules/Common/SearchBox.qml

@@ -95,6 +95,7 @@ Item {
           desktopPopup.popupY = window.y + point.y
         }
 
+        // The menu is always below the search field.
         this.connect(window, 'heightChanged', handleCoords)
         this.connect(window, 'widthChanged', handleCoords)
         this.connect(window, 'xChanged', handleCoords)
@@ -112,10 +113,6 @@ Item {
     DesktopPopup {
       id: desktopPopup
 
-      // The menu is always below the search field.
-      popupX: 0
-      popupY: 0
-
       requestActivate: true
 
       onVisibleChanged: !visible && searchBox.hideMenu()