[gparted] Remove no longer needed includes from GParted_Core.cc

[Curtis Gedak <gedakc src gnome org>]

commit e6f4b1c30505b0d4f0ce4da7e258b325e2875d27
Author: Mike Fleetwood <mike fleetwood googlemail com>
Date:   Wed Jul 13 14:20:32 2016 +0100

    Remove no longer needed includes from GParted_Core.cc
    
    No longer needed since commit:
        504eb04ddc6f2fddfa942f63823a9dc5334e5815
        Roll back (remove) code to recognize /dev/mapper/* devices, because ...

 src/GParted_Core.cc |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/src/GParted_Core.cc b/src/GParted_Core.cc
index 974d9fb..94e0c8f 100644
--- a/src/GParted_Core.cc
+++ b/src/GParted_Core.cc
@@ -50,14 +50,11 @@
 #include "../include/ufs.h"
 #include "../include/Copy_Blocks.h"
 
-#include <set>
 #include <cerrno>
 #include <cstring>
 #include <sys/types.h>
-#include <sys/stat.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <dirent.h>
 #include <gtkmm/messagedialog.h>
 #include <gtkmm/main.h>