unused classes removed

examples/iotdashboard/DashboardPage.cpp

@@ -11,7 +11,6 @@
 #include "LightDisplay.h"
 #include "GridBox.h"
 #include "MyDevices.h"
-#include "PieChart.h"
 #include "TopBar.h"
 #include "UsageBox.h"
 

examples/iotdashboard/iotdashboard.pro

@@ -18,9 +18,7 @@ SOURCES += \
     MainItem.cpp \
     MenuBar.cpp \
     MyDevices.cpp \
-    PieChart.cpp \
     PieChartPainted.cpp \
-    PieChartSkinlet.cpp \
     RoomsPage.cpp \
     RoundedIcon.cpp \
     Skin.cpp \
@@ -52,9 +50,7 @@ HEADERS += \
     MainWindow.h \
     MenuBar.h \
     MyDevices.h \
-    PieChart.h \
     PieChartPainted.h \
-    PieChartSkinlet.h \
     RoomsPage.h \
     RoundedIcon.h \
     Skin.h \