Fixed disposal of overlapped (#29466)

Author: davidfowl

.gitignore

@@ -43,3 +43,4 @@ msbuild.ProjectImports.zip
 StyleCop.Cache
 UpgradeLog.htm
 .idea
+*.svclog

src/Servers/HttpSys/src/AsyncAcceptContext.cs

@@ -177,14 +177,14 @@ protected virtual void Dispose(bool disposing)
                     _requestContext.ReleasePins();
                     _requestContext.Dispose();
                     _requestContext = null;
+                }
 
-                    var boundHandle = Server.RequestQueue.BoundHandle;
+                var boundHandle = Server.RequestQueue.BoundHandle;
 
-                    if (_overlapped != null)
-                    {
-                        boundHandle.FreeNativeOverlapped(_overlapped);
-                        _overlapped = null;
-                    }
+                if (_overlapped != null)
+                {
+                    boundHandle.FreeNativeOverlapped(_overlapped);
+                    _overlapped = null;
                 }
             }
         }