diff --git a/configs/sim/nx11/defconfig b/configs/sim/nx11/defconfig
index 46b5cb41478..0ac3362be2d 100644
--- a/configs/sim/nx11/defconfig
+++ b/configs/sim/nx11/defconfig
@@ -319,11 +319,3 @@ CONFIG_PTHREAD_STACK_MIN=256
 CONFIG_PTHREAD_STACK_DEFAULT=8192
 CONFIG_HEAP_BASE=
 CONFIG_HEAP_SIZE=
-
-#
-# Maintain legacy build behavior (revisit)
-#
-
-CONFIG_MMCSD=y
-CONFIG_MMCSD_SPI=y
-CONFIG_MMCSD_SDIO=y