[source] ipq806x: clean up redundant initialization of core device image variables

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=7a175e2d44095c144757e8115b281f507bbfc284

commit 7a175e2d44095c144757e8115b281f507bbfc284
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Jul 20 10:09:35 2016 +0200

    ipq806x: clean up redundant initialization of core device image variables
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/ipq806x/image/Makefile | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/target/linux/ipq806x/image/Makefile b/target/linux/ipq806x/image/Makefile
index f527fb6..9bf072e 100644
--- a/target/linux/ipq806x/image/Makefile
+++ b/target/linux/ipq806x/image/Makefile
@@ -40,11 +40,8 @@ define Device/Default
 	KERNEL_DEPENDS = $$(wildcard $(DTS_DIR)/$$(DEVICE_DTS).dts)
 	KERNEL_INITRAMFS_PREFIX := $$(IMG_PREFIX)-$(1)-initramfs
 	KERNEL_PREFIX := $$(IMAGE_PREFIX)
-	IMAGES :=
-	KERNEL_IN_UBI :=
-	BOARD_NAME :=
 endef
-DEVICE_VARS += BOARD_NAME KERNEL_SIZE
+DEVICE_VARS += KERNEL_SIZE
 
 define Device/LegacyImage
 	KERNEL_SUFFIX := -uImage