nds32: remove unused BUILTIN_DTB from arch/nds32/Makefile

This is not used or exported.

BUILTIN_DTB is locally defined and used in arch/nds32/boot/dts/Makefile.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
index 797ad9b450af210562d526fac5f1b5a6f4d4bba9..b33d5d81b6ae18410466bbbeda6ea80bd97681fc 100644 (file)
--- a/arch/nds32/Makefile
+++ b/arch/nds32/Makefile
@@ -31,12 +31,6 @@ core-y                               += arch/nds32/kernel/ arch/nds32/mm/
 core-$(CONFIG_FPU)              += arch/nds32/math-emu/
 libs-y                         += arch/nds32/lib/
 
-ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""'
-BUILTIN_DTB := y
-else
-BUILTIN_DTB := n
-endif
-
 ifdef CONFIG_CPU_LITTLE_ENDIAN
 KBUILD_CFLAGS   += $(call cc-option, -EL)
 KBUILD_AFLAGS   += $(call cc-option, -EL)