cleanup: removed an unnecessary namespace prefix.

git-svn-id: svn://bind10.isc.org/svn/bind10/branches/trac221b@2480 e5f2f494-b856-4b98-b285-d166d9295462

src/bin/auth/asio_link.cc

@@ -201,7 +201,7 @@ public:
                                placeholders::bytes_transferred));
     }
 
-    ip::tcp::socket& getSocket() { return (socket_); }
+    tcp::socket& getSocket() { return (socket_); }
 
     void headerRead(const asio::error_code& error,
                     size_t bytes_transferred)