x86/build: Remove the left-over bzlilo target

Commit

f279b49f13bd ("x86/boot: Modernize genimage script; hdimage+EFI support")

removed the bzlilo target from arch/x86/boot/Makefile.

Remove the left-over from arch/x86/Makefile.

Signed-off-by: Masahiro Yamada <[e-mail]>
Signed-off-by: Borislav Petkov <[e-mail]>
Link: https://lkml.kernel.org/r/[e-mail]

arch/x86/Makefile

···
 $(BOOT_TARGETS): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
-PHONY += install bzlilo
-install bzlilo:
+PHONY += install
+install:
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
 PHONY += vdso_install