Fix websocketpp asio warnings

Fix taken from this comment on github:

zaphoyd/websocketpp#794 (comment)

Author: crowder

lib/websocketpp/transport/asio/connection.hpp

@@ -312,7 +312,7 @@ class connection : public config::socket_type::socket_con_type {
      */
     timer_ptr set_timer(long duration, timer_handler callback) {
         timer_ptr new_timer = lib::make_shared<lib::asio::steady_timer>(
-            lib::ref(*m_io_service),
+            *m_io_service,
             lib::asio::milliseconds(duration)
         );
 
@@ -461,8 +461,7 @@ class connection : public config::socket_type::socket_con_type {
         m_io_service = io_service;
 
         if (config::enable_multithreading) {
-            m_strand = lib::make_shared<lib::asio::io_service::strand>(
-                lib::ref(*io_service));
+            m_strand = lib::make_shared<lib::asio::io_service::strand>(*io_service);
         }
 
         lib::error_code ec = socket_con_type::init_asio(io_service, m_strand,

lib/websocketpp/transport/asio/endpoint.hpp

@@ -191,8 +191,7 @@ class endpoint : public config::socket_type {
 
         m_io_service = ptr;
         m_external_io_service = true;
-        m_acceptor = lib::make_shared<lib::asio::ip::tcp::acceptor>(
-            lib::ref(*m_io_service));
+        m_acceptor = lib::make_shared<lib::asio::ip::tcp::acceptor>(*m_io_service);
 
         m_state = READY;
         ec = lib::error_code();
@@ -660,9 +659,7 @@ class endpoint : public config::socket_type {
      * @since 0.3.0
      */
     void start_perpetual() {
-        m_work = lib::make_shared<lib::asio::io_service::work>(
-            lib::ref(*m_io_service)
-        );
+        m_work = lib::make_shared<lib::asio::io_service::work>(*m_io_service);
     }
 
     /// Clears the endpoint's perpetual flag, allowing it to exit when empty
@@ -826,8 +823,7 @@ class endpoint : public config::socket_type {
 
         // Create a resolver
         if (!m_resolver) {
-            m_resolver = lib::make_shared<lib::asio::ip::tcp::resolver>(
-                lib::ref(*m_io_service));
+            m_resolver = lib::make_shared<lib::asio::ip::tcp::resolver>(*m_io_service);
         }
 
         tcon->set_uri(u);

lib/websocketpp/transport/asio/security/none.hpp

@@ -168,8 +168,7 @@ class connection : public lib::enable_shared_from_this<connection> {
             return socket::make_error_code(socket::error::invalid_state);
         }
 
-        m_socket = lib::make_shared<lib::asio::ip::tcp::socket>(
-            lib::ref(*service));
+        m_socket = lib::make_shared<lib::asio::ip::tcp::socket>(*service);
 
         m_state = READY;
 

lib/websocketpp/transport/asio/security/tls.hpp

@@ -193,8 +193,7 @@ class connection : public lib::enable_shared_from_this<connection> {
         if (!m_context) {
             return socket::make_error_code(socket::error::invalid_tls_context);
         }
-        m_socket = lib::make_shared<socket_type>(
-            _WEBSOCKETPP_REF(*service),lib::ref(*m_context));
+        m_socket = lib::make_shared<socket_type>(_WEBSOCKETPP_REF(*service),*m_context);
 
         m_io_service = service;
         m_strand = strand;