resolve config caching issue

MediaBrowser.Api/BaseApiService.cs

@@ -58,21 +58,6 @@ namespace MediaBrowser.Api
             return ResultFactory.GetOptimizedResult(Request, result);
         }
 
-        /// <summary>
-        /// To the optimized result using cache.
-        /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="cacheKey">The cache key.</param>
-        /// <param name="lastDateModified">The last date modified.</param>
-        /// <param name="cacheDuration">Duration of the cache.</param>
-        /// <param name="factoryFn">The factory function.</param>
-        /// <returns>System.Object.</returns>
-        protected object ToOptimizedResultUsingCache<T>(Guid cacheKey, DateTime? lastDateModified, TimeSpan? cacheDuration, Func<T> factoryFn)
-           where T : class
-        {
-            return ResultFactory.GetOptimizedResultUsingCache(Request, cacheKey, lastDateModified, cacheDuration, factoryFn);
-        }
-
         protected void AssertCanUpdateUser(IUserManager userManager, string userId)
         {
             var auth = AuthorizationContext.GetAuthorizationInfo(Request);

MediaBrowser.Api/ConfigurationService.cs

@@ -105,13 +105,7 @@ namespace MediaBrowser.Api
         /// <returns>System.Object.</returns>
         public object Get(GetConfiguration request)
         {
-            var configPath = _configurationManager.ApplicationPaths.SystemConfigurationFilePath;
-
-            var dateModified = _fileSystem.GetLastWriteTimeUtc(configPath);
-
-            var cacheKey = (configPath + dateModified.Ticks).GetMD5();
-
-            return ToOptimizedResultUsingCache(cacheKey, dateModified, null, () => _configurationManager.Configuration);
+            return ToOptimizedResult(_configurationManager.Configuration);
         }
 
         public object Get(GetNamedConfiguration request)

MediaBrowser.Api/PluginService.cs

@@ -250,11 +250,7 @@ namespace MediaBrowser.Api
             var guid = new Guid(request.Id);
             var plugin = _appHost.Plugins.First(p => p.Id == guid);
 
-            var dateModified = plugin.ConfigurationDateLastModified;
-
-            var cacheKey = (plugin.Version.ToString() + dateModified.Ticks).GetMD5();
-
-            return ToOptimizedResultUsingCache(cacheKey, dateModified, null, () => plugin.Configuration);
+            return ToOptimizedResult(plugin.Configuration);
         }
 
         /// <summary>