Remove redundant deprecated preprocessor test.
diff --git a/asio/include/asio/io_context.hpp b/asio/include/asio/io_context.hpp
index b4d0cb7..44fe432 100644
--- a/asio/include/asio/io_context.hpp
+++ b/asio/include/asio/io_context.hpp
@@ -726,11 +726,9 @@
/// Get the io_context associated with the work.
asio::io_context& get_io_context();
-#if !defined(ASIO_NO_DEPRECATED)
/// (Deprecated: Use get_io_context().) Get the io_context associated with the
/// work.
asio::io_context& get_io_service();
-#endif // !defined(ASIO_NO_DEPRECATED)
private:
// Prevent assignment.
