[PATCH] x86: drop use of prelink-efi_lto.o

[Jan Beulich <jbeulich@xxxxxxxx>]

As of de94e8b4f996 ("x86/EFI: sanitize build logic") it is identical to
prelink_lto.o.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/x86/Makefile
+++ b/xen/arch/x86/Makefile
@@ -135,14 +135,11 @@ ifeq ($(CONFIG_LTO),y)
 prelink_lto.o: $(ALL_OBJS)
        $(LD_LTO) -r -o $@ $^
 
-prelink-efi_lto.o: $(ALL_OBJS)
-       $(LD_LTO) -r -o $@ $^
-
 # Link it with all the binary objects
 prelink.o: $(patsubst %/built_in.o,%/built_in_bin.o,$(ALL_OBJS)) prelink_lto.o 
$(EFI_OBJS-y)
        $(LD) $(XEN_LDFLAGS) -r -o $@ $^
 
-prelink-efi.o: $(patsubst %/built_in.o,%/built_in_bin.o,$(ALL_OBJS)) 
prelink-efi_lto.o
+prelink-efi.o: $(patsubst %/built_in.o,%/built_in_bin.o,$(ALL_OBJS)) 
prelink_lto.o
        $(LD) $(XEN_LDFLAGS) -r -o $@ $^
 else
 prelink.o: $(ALL_OBJS) $(EFI_OBJS-y)