Some build file cleanup

runtime/bin/io_service_no_ssl.cc

Index: runtime/bin/io_service_no_ssl.cc
diff --git a/runtime/bin/io_service_no_ssl.cc b/runtime/bin/io_service_no_ssl.cc
index 5c70fe45c0145bef734ac00023c686a697ac1d0e..5dedc6229f246065d90c5210634dbd065115ac7e 100644
--- a/runtime/bin/io_service_no_ssl.cc
+++ b/runtime/bin/io_service_no_ssl.cc
@@ -2,11 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+#if defined(DART_IO_SECURE_SOCKET_DISABLED)
+
+#include "bin/io_service_no_ssl.h"
+
 #include "bin/dartutils.h"
 #include "bin/directory.h"
 #include "bin/file.h"
 #include "bin/io_buffer.h"
-#include "bin/io_service_no_ssl.h"
 #include "bin/socket.h"
 #include "bin/utils.h"
 
@@ -71,3 +74,5 @@ void FUNCTION_NAME(IOService_NewServicePort)(Dart_NativeArguments args) {
 
 }  // namespace bin
 }  // namespace dart
+
+#endif  // defined(DART_IO_SECURE_SOCKET_DISABLED)