sparc: remove <asm/export.h>

All *.S files under arch/sparc/ have been converted to include
<linux/export.h> instead of <asm/export.h>.

Remove <asm/export.h>.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>

arch/sparc/include/asm/Kbuild

@@ -2,6 +2,5 @@
 generated-y += syscall_table_32.h
 generated-y += syscall_table_64.h
 generic-y += agp.h
-generic-y += export.h
 generic-y += kvm_para.h
 generic-y += mcs_spinlock.h