Cleaning unusefull code

lemonldap-ng-manager/site/coffee/2ndfa.coffee

@@ -368,7 +368,6 @@ llapp.controller 'SessionsExplorerCtrl', ['$scope', '$translator', '$location',
 	# initialization
 	$scope.init = ->
 		$scope.waiting = true
-		$scope.U2FCheck = "1"
 		$scope.data = []
 		$q.all [
 			$translator.init $scope.lang

lemonldap-ng-manager/site/htdocs/static/js/2ndfa.js

@@ -370,7 +370,6 @@
       };
       $scope.init = function() {
         $scope.waiting = true;
-        $scope.U2FCheck = "1";
         $scope.data = [];
         $q.all([$translator.init($scope.lang), $scope.updateTree('', $scope.data, 0, 0)]).then(function() {
           return $scope.waiting = false;