Fix Windows build

src/third-party/Qt-Color-Widgets/color_widgets.pri

@@ -24,7 +24,6 @@ SOURCES += \
 
 HEADERS += \
     $$PWD/include/color_wheel.hpp \
-    $$PWD/include/colorwidgets_global.hpp \
     $$PWD/src/color_utils.hpp
 
 RESOURCES += \

src/third-party/Qt-Color-Widgets/include/color_wheel.hpp

@@ -22,8 +22,6 @@
 #ifndef COLOR_WHEEL_HPP
 #define COLOR_WHEEL_HPP
 
-#include "colorwidgets_global.hpp"
-
 #include <QWidget>
 
 namespace color_widgets {
@@ -34,7 +32,7 @@ namespace color_widgets {
  * It has an outer wheel to select the Hue and an intenal square to select
  * Saturation and Lightness.
  */
-class QCP_EXPORT ColorWheel : public QWidget
+class ColorWheel : public QWidget
 {
     Q_OBJECT
 

src/third-party/Qt-Color-Widgets/include/colorwidgets_global.hpp

@@ -1,14 +0,0 @@
-#ifndef QT_COLOR_WIDGETS_GLOBAL_H
-#define QT_COLOR_WIDGETS_GLOBAL_H
-
-#include <QtCore/QtGlobal>
-
-#if defined(QTCOLORWIDGETS_LIBRARY)
-#    define QCP_EXPORT Q_DECL_EXPORT
-#elif defined(QTCOLORWIDGETS_STATICALLY_LINKED)
-#    define QCP_EXPORT
-#else
-#    define QCP_EXPORT Q_DECL_IMPORT
-#endif
-
-#endif // QT_COLOR_WIDGETS_GLOBAL_H