[ostree] grub2: Don't delete grub2.cfg.old file we just copied

[Colin Walters <walters src gnome org>]

commit 3d2322db7a609fb4653ce6bf6c4b96b0c315a5b7
Author: Colin Walters <walters verbum org>
Date:   Wed Jan 27 10:43:57 2016 -0500

    grub2: Don't delete grub2.cfg.old file we just copied
    
    The original intention here was that we'd keey around a copy of the
    file so that grub2 could eventually learn how to do atomic updates by
    checking for a "fully written" marker in the *new* file, and if it
    didn't exist, falling back to grub2.cfg.old.
    
    I haven't yet proposed that upstream, but we might as well stop
    deleting the file since it's useful as a backup at least.
    
    Reported-by: Gatis Paeglis

 src/libostree/ostree-bootloader-grub2.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/src/libostree/ostree-bootloader-grub2.c b/src/libostree/ostree-bootloader-grub2.c
index 1f89914..42ed5ac 100644
--- a/src/libostree/ostree-bootloader-grub2.c
+++ b/src/libostree/ostree-bootloader-grub2.c
@@ -388,8 +388,6 @@ rm -f ${grub_cfg}.new
       if (!g_file_copy (self->config_path_efi, config_path_efi_old,
                         G_FILE_COPY_OVERWRITE, cancellable, NULL, NULL, error))
         goto out;
-      if (!ot_gfile_ensure_unlinked (config_path_efi_old, cancellable, error))
-        goto out;
 
       /* NOTE: NON-ATOMIC REPLACEMENT; WE can't do anything else on FAT;
        * see https://bugzilla.gnome.org/show_bug.cgi?id=724246