Removed duplicated include

Change-Id: Ife369fab72b2eeabbc87356f267398dc9a985443
Reviewed-on: https://gerrit.libreoffice.org/40773
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>

chart2/source/controller/main/ChartController_Tools.cxx

@@ -65,7 +65,6 @@
 #include <svx/dialmgr.hxx>
 #include <svx/dialogs.hrc>
 #include <svx/strings.hrc>
-#include <editeng/outliner.hxx>
 #include <svx/svditer.hxx>
 #include <svx/svdpage.hxx>
 #include <svx/svdundo.hxx>