Reduce imported functions in virt-df to ones which are actually used.

diff --git a/tools/virt-df b/tools/virt-df
index 17aed4a..b997691 100755 (executable)
--- a/tools/virt-df
+++ b/tools/virt-df
@@ -20,9 +20,7 @@ use warnings;
 use strict;
 
 use Sys::Guestfs;
-use Sys::Guestfs::Lib qw(open_guest get_partitions resolve_windows_path
-  inspect_all_partitions inspect_partition
-  inspect_operating_systems mount_operating_system inspect_in_detail);
+use Sys::Guestfs::Lib qw(open_guest get_partitions);
 
 use Pod::Usage;
 use Getopt::Long;