diff --git a/3rdparty/cpprestsdk/samples/FacebookDemo/Facebook.cpp b/3rdparty/cpprestsdk/samples/FacebookDemo/Facebook.cpp
deleted file mode 100644
index 5048e22b2a8825a03412b185acd363e3d6ba1cb0..0000000000000000000000000000000000000000
--- a/3rdparty/cpprestsdk/samples/FacebookDemo/Facebook.cpp
+++ /dev/null
@@ -1,148 +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.
-*
-* ==--==
-* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
-*
-* Facebook.cpp - Implementation file for simple facebook client. 
-* Note: this implementation will not work until you replace the placeholder 
-* strings below with tokens obtained from facebook.
-* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-****/
-
-#include "pch.h"
-#include "facebook.h"
-
-using namespace pplx;
-using namespace web;
-using namespace Platform;
-using namespace Windows::Foundation;
-using namespace Windows::Security::Authentication::Web;
-using namespace Windows::Storage;
-
-// Placeholder strings for app tokens
-// see blog post at http://aka.ms/FacebookCppRest
-// for information on obtaining these values
-const std::wstring application_id(L"insert your application ID");
-const std::wstring application_token(L"insert your application token");
-
-facebook_client& facebook_client::instance()
-{
-	static facebook_client c;
-	return c;
-}
-
-pplx::task<void> facebook_client::login(std::wstring scopes)
-{
-	// Look in the Local Settings for previously-stored login credentials
-	auto ls = ApplicationData::Current->LocalSettings->CreateContainer("LoginDetailsCache",
-		ApplicationDataCreateDisposition::Always);
-
-	if(ls->Values->HasKey("facebookToken")) {
-		token_ = dynamic_cast<String^>(ls->Values->Lookup("facebookToken"))->Data();
-	}
-
-	if(!token_.empty()) {
-		// Check if the token is still valid
-		using namespace http;
-
-		uri_builder tokendbg_uri(L"/debug_token");
-		tokendbg_uri.append_query(L"input_token", token_);
-		tokendbg_uri.append_query(L"access_token", application_token);
-
-		http_request request(methods::GET);
-		request.set_request_uri(tokendbg_uri.to_string());
-		request.headers().add(header_names::accept, L"application/json");
-
-		return raw_client.request(request)
-		.then([](http_response response){
-			return response.extract_json();
-		}).then([=](json::value v) -> task<void> {
-			auto obj = v[L"data"];
-
-			if(obj[L"is_valid"].as_bool()) {
-				// Currently cached access token is valid
-				signed_in = true;
-				return create_task([](){}); // Return an empty task to match the function's return value
-			}
-
-			// If the token was invalid, go through full login
-			return full_login(scopes);
-		}, task_continuation_context::use_current());
-	}
-
-	// If no token was found, go through full login
-	return full_login(scopes);
-}
-
-pplx::task<void> facebook_client::full_login(std::wstring scopes) 
-{
-	// Create uri for OAuth login on Facebook
-	http::uri_builder login_uri(L"https://www.facebook.com/dialog/oauth");
-	login_uri.append_query(L"client_id", application_id); // App id
-	login_uri.append_query(L"redirect_uri", L"https://www.facebook.com/connect/login_success.html");
-	login_uri.append_query(L"scope", scopes);
-	login_uri.append_query(L"display", L"popup");
-	login_uri.append_query(L"response_type", L"token");
-
-	return create_task(WebAuthenticationBroker::AuthenticateAsync(
-		WebAuthenticationOptions::None, ref new Uri(ref new String(login_uri.to_string().c_str())),
-		ref new Uri("https://www.facebook.com/connect/login_success.html")))
-	.then([=](WebAuthenticationResult^ result) {
-		if(result->ResponseStatus == WebAuthenticationStatus::Success)
-		{
-			signed_in = true;
-
-			std::wstring response(result->ResponseData->Data());  // Save authentication token
-			auto start = response.find(L"access_token=");
-			start += 13;
-			auto end = response.find('&');
-
-			token_ = response.substr(start, end-start);
-
-			// Add token to Local Settings for future login attempts
-			auto ls = ApplicationData::Current->LocalSettings->CreateContainer("LoginDetailsCache",
-				ApplicationDataCreateDisposition::Always);
-
-			ls->Values->Insert("facebookToken", ref new String(token_.c_str()));
-		}
-	});
-}
-
-task<json::value> facebook_client::get(std::wstring path)
-{
-	using namespace http;
-	
-	http_request request(methods::GET);
-
-	request.set_request_uri(base_uri().append_path(path).to_uri());
-	request.headers().add(header_names::accept, L"application/json");
-
-	return raw_client.request(request)
-	.then([](http_response response) {
-		return response.extract_json();
-	});
-}
-
-http::uri_builder facebook_client::base_uri(bool absolute)
-{
-	http::uri_builder ret;
-
-	if(absolute)
-		ret.set_path(L"https://graph.facebook.com");
-
-	ret.append_query(L"access_token", token_);
-	return ret;
-}
\ No newline at end of file