[nautilus] file: remove an incorrect comment

[Cosimo Cecchi <cosimoc src gnome org>]

commit 8ec950c4d89a75781b64010e10ede543803f7ba6
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Mon Sep 1 11:46:59 2014 -0700

    file: remove an incorrect comment

 libnautilus-private/nautilus-file.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/libnautilus-private/nautilus-file.c b/libnautilus-private/nautilus-file.c
index 4a12c14..80137be 100644
--- a/libnautilus-private/nautilus-file.c
+++ b/libnautilus-private/nautilus-file.c
@@ -924,7 +924,6 @@ nautilus_file_get_parent_location (NautilusFile *file)
        g_assert (NAUTILUS_IS_FILE (file));
        
        if (nautilus_file_is_self_owned (file)) {
-               /* Callers expect an empty string, not a NULL. */
                return NULL;
        }