diff --git a/3rdparty/cpprestsdk/samples/Oauth1Client/stdafx.cpp b/3rdparty/cpprestsdk/samples/Oauth1Client/stdafx.cpp
deleted file mode 100644
index 26c94a456566e825f532a0103e67aa05ef665329..0000000000000000000000000000000000000000
--- a/3rdparty/cpprestsdk/samples/Oauth1Client/stdafx.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-/***
-* ==++==
-*
-* Copyright (c) Microsoft Corporation. All rights reserved. 
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-* http://www.apache.org/licenses/LICENSE-2.0
-* 
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*
-* ==--==
-* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
-*
-* stdafx.cpp : source file that includes just the standard includes
-*
-* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-****/
-
-#include "stdafx.h"
-
-// reference any additional headers you need in STDAFX.H
-// and not in this file