tegra: clean-up useless define

Wondering what exactly that one should bring (;-p). Looks like a remnant of the last commit

783e6a72b8278d59854ced41a4696c9a14abbb0b
kconfig: move CONFIG_OF_* to Kconfig

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/configs/tegra-common-post.h b/include/configs/tegra-common-post.h
index 23e3c8a..9abf268 100644
--- a/include/configs/tegra-common-post.h
+++ b/include/configs/tegra-common-post.h
@@ -67,10 +67,6 @@
 
 #define CONFIG_SKIP_LOWLEVEL_INIT
 
-/* remove devicetree support */
-#ifdef CONFIG_OF_CONTROL
-#endif
-
 /* remove I2C support */
 #ifdef CONFIG_SYS_I2C_TEGRA
 #undef CONFIG_SYS_I2C_TEGRA