Fix compile error with boost 1.71.0 (#882)

Kernopike · Yong Yang · web-flow · commit 31d304cdf52b · 2020-05-09T02:14:35.000+10:00
boost/network/protocol/stream_handler.hpp:22:48: fatal error: boost/asio/stream_socket_service.hpp: No such file or directory

Co-authored-by: Yong Yang &lt;yong.yang@verisilicon.com&gt;
diff --git a/boost/network/protocol/stream_handler.hpp b/boost/network/protocol/stream_handler.hpp
@@ -19,7 +19,6 @@
 #include <boost/asio/detail/throw_error.hpp>
 #include <boost/asio/error.hpp>
 #include <boost/asio/io_service.hpp>
-#include <boost/asio/stream_socket_service.hpp>
 #include <cstddef>
 
 #ifdef BOOST_NETWORK_ENABLE_HTTPS
