Fix display of backup warning

see cloudron/box#719

src/views/backups.js

@@ -13,7 +13,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
 
     $scope.manualBackupApps = [];
 
-    $scope.backupCheck = { ok: true, message: '' };
     $scope.backupConfig = {};
     $scope.backups = [];
 
@@ -698,7 +697,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
                 $('#configureBackupModal').modal('hide');
 
                 getBackupConfig();
-                checkBackupConfig();
             });
         }
     };
@@ -740,15 +738,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
         });
     }
 
-    function checkBackupConfig() {
-        Client.checkBackupConfig(function (error, check) {
-            if (error) return console.error(error);
-
-            // { ok: bool, message: checkMessageTranslationKey }
-            $scope.backupCheck = check;
-        });
-    }
-
     Client.onReady(function () {
         Client.memory(function (error, memory) {
             if (error) console.error(error);
@@ -757,7 +746,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
 
             fetchBackups();
             getBackupConfig();
-            checkBackupConfig();
 
             $scope.manualBackupApps = Client.getInstalledApps().filter(function (app) { return !app.enableBackup; });