Delete all obsolete methods

[hikalkan]

Removed Properties and Methods

• ILocalizationManager.GetAllLanguages (use ILanguageManager.GetLanguages() instead).
• ILocalizationManager.CurrentLanguage (use ILanguageManager.CurrentLanguage instead)
• IPermissionChecker.IsGrantedAsync(long userId, string permissionName) (use IsGrantedAsync(UserIdentifier user, string permissionName) instead).
• ISettingManager.GetAllSettingValuesForUserAsync(long userId) (use GetAllSettingValuesForUserAsync(UserIdentifier user) instead)
• ISettingManager.ChangeSettingForUserAsync(long userId, string name, string value) (use ChangeSettingForUserAsync(UserIdentifier user, string name, string value))
• IUserNavigationManager.GetMenuAsync(string menuName, long? userId, int? tenantId = null) (use GetMenuAsync(string menuName, UserIdentifier user) instead).
• IUserNavigationManager.GetMenusAsync(long? userId, int? tenantId = null) (use GetMenusAsync(UserIdentifier user) instead).
• OnlineClientManagerExtensions.GetByUserIdOrNull (use GetAllByUserId instead which may return multiple client if user has connected from more than one browser)
• AbpController.CurrentSession (use AbpSession instead).
• AbpApiController.CurrentSession (use AbpSession instead).
• ApplicationService.CurrentSession (use AbpSession instead).
• IDbContextProvider.DbContext (use GetDbContext() instead).

Removed Classes

• SettingHelper (inject and use ISettingManager instead. In static contexts, you can use SingletonDependency.Instance but this breaks testability)
• ServiceProxiesController (use AbpServiceProxiesController instead).
• XmlLocalizationSource (use DictionaryBasedLocalizationSource as done in startup templates. This does not remove XML localization source support)
• ThreadSafeObjectCache and AsyncThreadSafeObjectCache and (use cache system: http://www.aspnetboilerplate.com/Pages/Documents/Caching)