Remove unnecessary includes from gradient.cxx

Change-Id: If85cc6598d67454ca7555d64cac894e84cdb1b01

vcl/source/gdi/outdev/gradient.cxx

@@ -17,29 +17,14 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#include <tools/debug.hxx>
-#include <tools/line.hxx>
 #include <tools/poly.hxx>
 
 #include <vcl/gradient.hxx>
-#include <vcl/metaact.hxx>
-#include <vcl/gdimtf.hxx>
-#include <vcl/salbtype.hxx>
 #include <vcl/virdev.hxx>
 #include <vcl/outdev.hxx>
 #include <vcl/settings.hxx>
 
-#include "window.h"
-#include "salframe.hxx"
 #include "salgdi.hxx"
-#include "svdata.hxx"
-#include "outdata.hxx"
-
-#include <basegfx/polygon/b2dpolygon.hxx>
-#include <basegfx/polygon/b2dpolypolygon.hxx>
-#include <basegfx/matrix/b2dhommatrix.hxx>
-#include <boost/scoped_array.hpp>
-#include <boost/scoped_ptr.hpp>
 
 #define GRADIENT_DEFAULT_STEPCOUNT  0