boot/uboot: Remove obsolete CONFIG_NOSOFTFLOAT flag

This flag seems to be obsolete. There is no piece of code in the U-Boot source
tree referencing CONFIG_NOSOFTFLOAT.

Unfortunatly the use of this flag is not documented here. Maybe it's about this
old workaround:
http://lists.denx.de/pipermail/u-boot/2007-March/020282.html

However, this patch has been declined:
http://www.denx.de/wiki/view/U-Boot/PatchStatus?rev=1.27

Since no other configure options are used, remove also UBOOT_CONFIGURE_OPTS.

Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

boot/uboot/uboot.mk

@@ -58,7 +58,6 @@ endif
 
 UBOOT_ARCH = $(KERNEL_ARCH)
 
-UBOOT_CONFIGURE_OPTS += CONFIG_NOSOFTFLOAT=1
 UBOOT_MAKE_OPTS += \
 	CROSS_COMPILE="$(CCACHE) $(TARGET_CROSS)" \
 	ARCH=$(UBOOT_ARCH)
@@ -95,7 +94,7 @@ UBOOT_POST_PATCH_HOOKS += UBOOT_APPLY_CUSTOM_PATCHES
 endif
 
 define UBOOT_CONFIGURE_CMDS
-	$(TARGET_CONFIGURE_OPTS) $(UBOOT_CONFIGURE_OPTS) 	\
+	$(TARGET_CONFIGURE_OPTS) 	\
 		$(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS)		\
 		$(UBOOT_BOARD_NAME)_config
 	@echo >> $(@D)/include/config.h
@@ -114,7 +113,7 @@ define UBOOT_CONFIGURE_CMDS
 endef
 
 define UBOOT_BUILD_CMDS
-	$(TARGET_CONFIGURE_OPTS) $(UBOOT_CONFIGURE_OPTS) 	\
+	$(TARGET_CONFIGURE_OPTS) 	\
 		$(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS) 		\
 		$(UBOOT_MAKE_TARGET)
 endef