[nautilus] test: Remove useless macro definition

[Carlos Soriano <csoriano src gnome org>]

commit 93fb7954fb62c357701cd1fc00625b194a3ffeab
Author: Alexandru Fazakas <alex fazakas97 gmail com>
Date:   Fri May 18 17:53:48 2018 +0300

    test: Remove useless macro definition
    
    This definition in the dir_has_files unit test is not used,
    so it should be removed.

 test/automated/displayless/test-file-operations-dir-has-files.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/test/automated/displayless/test-file-operations-dir-has-files.c 
b/test/automated/displayless/test-file-operations-dir-has-files.c
index 75c21e2c4..10bbaa663 100644
--- a/test/automated/displayless/test-file-operations-dir-has-files.c
+++ b/test/automated/displayless/test-file-operations-dir-has-files.c
@@ -8,8 +8,6 @@
 #include <unistd.h>
 #include "eel/eel-string.h"
 
-#define ROOT_DIR "file:///tmp"
-
 /* Tests the function for a simple file */
 static void
 test_simple_file (void)