remove u-boot under target/linux/xburst/image, use package/uboot-xburst instead

Signed-off-by: Xiangfu Liu <xiangfu@sharism.cc>

target/linux/xburst/image/Config.in

@@ -1,13 +0,0 @@
-config XBURST_UBOOT
-	bool "Build U-Boot bootloader"
-	depends TARGET_xburst
-	default n
-
-config XBURST_UBOOT_TARGET
-	string "U-Boot target board"
-	depends TARGET_xburst
-	depends XBURST_UBOOT
-	default "qi_lb60"
-	help
-	  For all supported boards there are ready-to-use default
-		configurations available; just type "<board_name>".

target/linux/xburst/image/Makefile

@@ -17,16 +17,6 @@ UBIFS_OPTS = -m 2048 -e 126KiB -c 4096
 UBINIZE_OPTS = -m 2048 -p 128KiB -s 512
 endif
 
-ifneq ($(CONFIG_XBURST_UBOOT),)
-  define Build/Clean
-	$(MAKE) -C u-boot clean
-  endef
-
-  define Build/Compile
-	$(MAKE) -C u-boot compile
-  endef
-endif
-
 define Image/BuildKernel
 	cp $(LINUX_DIR)/arch/mips/boot/uImage $(BIN_DIR)/$(IMG_PREFIX)-uImage.bin
 endef

target/linux/xburst/image/u-boot/Makefile

@@ -1,34 +0,0 @@
-#
-# Copyright (C) 2009 Qi Hardware, Inc.
-#
-# This is free software, licensed under the GNU General Public License v3 
-# or any later.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=u-boot
-PKG_VERSION:=2009.11
-
-PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_SOURCE_URL:=ftp://ftp.denx.de/pub/u-boot
-PKG_CAT:=bzcat
-
-include $(INCLUDE_DIR)/package.mk
-
-UBOOT_CONFIG=$(strip $(subst ",, $(CONFIG_XBURST_UBOOT_TARGET)))
-
-define Build/Compile
-	$(MAKE) -C $(PKG_BUILD_DIR) $(UBOOT_CONFIG)_config
-	$(MAKE) -C $(PKG_BUILD_DIR) CROSS_COMPILE=$(TARGET_CROSS)
-endef
-
-define Build/InstallDev
-	mkdir -p $(BIN_DIR)
-	cp $(PKG_BUILD_DIR)/u-boot-nand.bin $(BIN_DIR)/openwrt-$(BOARD)-u-boot.bin
-endef
-
-$(eval $(call Build/DefaultTargets))