boot/uboot: remove Blackfin related code

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

boot/uboot/Config.in

@@ -202,10 +202,6 @@ config BR2_TARGET_UBOOT_FORMAT_KWB
 	bool "u-boot.kwb (Marvell)"
 	depends on BR2_arm
 
-config BR2_TARGET_UBOOT_FORMAT_LDR
-	bool "u-boot.ldr"
-	depends on BR2_bfin
-
 config BR2_TARGET_UBOOT_FORMAT_ELF
 	bool "u-boot.elf"
 

boot/uboot/uboot.mk

@@ -61,10 +61,6 @@ UBOOT_BINS += u-boot.ais
 UBOOT_MAKE_TARGET += u-boot.ais
 endif
 
-ifeq ($(BR2_TARGET_UBOOT_FORMAT_LDR),y)
-UBOOT_BINS += u-boot.ldr
-endif
-
 ifeq ($(BR2_TARGET_UBOOT_FORMAT_NAND_BIN),y)
 UBOOT_BINS += u-boot-nand.bin
 endif