1 files changed, 0 insertions, 10 deletions
diff --git a/demos/ARMCM3-STM32F103-GCC/chconf.h b/demos/ARMCM3-STM32F103-GCC/chconf.h
index 8e6eda189..3c6353168 100644
--- a/demos/ARMCM3-STM32F103-GCC/chconf.h
+++ b/demos/ARMCM3-STM32F103-GCC/chconf.h
@@ -233,16 +233,6 @@
 #endif
 
 /**
- * If specified then the full duplex serial driver APIs are included in the
- * kernel.
- * @note The default is @p TRUE.
- * @note Requires @p CH_USE_QUEUES.
- */
-#if !defined(CH_USE_SERIAL_FULLDUPLEX) || defined(__DOXYGEN__)
-#define CH_USE_SERIAL_FULLDUPLEX        TRUE
-#endif
-
-/**
  * If specified then the memory heap allocator APIs are included in the kernel.
  * @note The default is @p TRUE.
  * @note Requires @p CH_USE_MUTEXES or @p CH_USE_SEMAPHORES.