glnx porting: Port away from gs_file_get_basename_cached()

In some cases we use glnx_basename(), in others we already had a
`GFileInfo` around with the name.

Closes: #316
Approved by: jlebon

src/libostree/ostree-sysroot-deploy.c

@@ -684,7 +684,7 @@ relabel_recursively (OstreeSysroot  *sysroot,
       if (file_info == NULL)
         break;
 
-      g_ptr_array_add (path_parts, (char*)gs_file_get_basename_cached (child));
+      g_ptr_array_add (path_parts, (char*)g_file_info_get_name (file_info));
 
       ftype = g_file_info_get_file_type (file_info);
       if (ftype == G_FILE_TYPE_DIRECTORY)