riscv: Remove duplicate CONFIG_PAGE_OFFSET definition

This definition is already provided by include/generated/autoconf.h,
so it does not need to be provided on the command line.

Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Jesse Taube <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

Author: SiFiveHolland

arch/riscv/Makefile

@@ -98,7 +98,6 @@ KBUILD_AFLAGS += -march=$(riscv-march-y)
 CC_FLAGS_FPU  := -march=$(shell echo $(riscv-march-y) | sed -E 's/(rv32ima|rv64ima)([^v_]*)v?/\1\2/')
 
 KBUILD_CFLAGS += -mno-save-restore
-KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET)
 
 ifeq ($(CONFIG_CMODEL_MEDLOW),y)
 	KBUILD_CFLAGS += -mcmodel=medlow