change TargetFramework

OpenAuth.WebApi/Model/StartupLogger.cs

@@ -1,24 +0,0 @@
-
-
-using Microsoft.Extensions.Logging;
-
-namespace OpenAuth.WebApi.Model
-{
-    /// <summary>
-    /// 从3.0开始Startup ConfigureServices中不能使用ILogger，需要扩展
-    /// </summary>
-    public class StartupLogger
-    {
-        private readonly ILogger<StartupLogger> _logger;
-
-        public StartupLogger(ILogger<StartupLogger> logger)
-        {
-            _logger = logger;
-        }
-
-        public void LogInformation(string message)
-        {
-            _logger.LogInformation(message);
-        }
-    }
-}