Remove delay in opening the edit menu

Don't show the edit menu for multiple selected relations
Streamline edit menu code, replacing the confusing "suppressMenu" system

modules/ui/edit_menu.js

@@ -30,8 +30,6 @@ export function uiEditMenu(context) {
     var editMenu = function(selection) {
         if (!_operations.length) return;
 
-        selection.node().focus();
-
         var offset = [0, 0];
         var viewport = context.surfaceRect();