universal8890: clean-up recovery flags

TARGET_SYSTEM_PROP += $(COMMON_PATH)/system.prop

# Recovery

BOARD_HAS_NO_SELECT_BUTTON := true

BOARD_RECOVERY_SWIPE := true

BOARD_USE_CUSTOM_RECOVERY_FONT := \"roboto_23x41.h\"

RECOVERY_GRAPHICS_USE_LINELENGTH := true

RECOVERY_SDCARD_ON_DATA := true

BOARD_HAS_DOWNLOAD_MODE := true

TARGET_RECOVERY_FSTAB := $(COMMON_PATH)/ramdisk/etc/fstab.samsungexynos8890

TARGET_RECOVERY_PIXEL_FORMAT := "ABGR_8888"

TARGET_USE_CUSTOM_LUN_FILE_PATH := "/sys/devices/15400000.usb/15400000.dwc3/gadget/lun%d/file"

# Releasetools

TARGET_RELEASETOOLS_EXTENSIONS := $(COMMON_PATH)/releasetools