[Spread] Gui: remove unused includes

- also sort includes

src/Mod/Spreadsheet/Gui/Workbench.cpp

@@ -21,25 +21,26 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 
 #ifndef _PreComp_
 # include <qobject.h>
+# include <QToolBar>
 #endif
 
-#include "Workbench.h"
-#include <Gui/ToolBarManager.h>
-#include <Gui/MenuManager.h>
-#include <Gui/Application.h>
-#include <Gui/MainWindow.h>
-#include <Gui/Command.h>
-#include <QToolBar>
-#include "qtcolorpicker.h"
-#include "Mod/Spreadsheet/App/Sheet.h"
 #include <App/Range.h>
+#include <Gui/Application.h>
+#include <Gui/Command.h>
+#include <Gui/MainWindow.h>
+#include <Gui/MenuManager.h>
+#include <Gui/ToolBarManager.h>
+#include "Mod/Spreadsheet/App/Sheet.h"
 #include "Mod/Spreadsheet/Gui/SpreadsheetView.h"
 
+#include "Workbench.h"
+#include "qtcolorpicker.h"
+
+
 using namespace Base;
 using namespace App;
 using namespace SpreadsheetGui;