Remove qt resource images from libqtk.

src/app/qtkmainwindow.cpp

@@ -62,7 +62,7 @@ MainWindow::MainWindow(QWidget * parent) : QMainWindow(parent)
   ui_->menuView->addAction(ui_->qtk__TreeView->toggleViewAction());
 
   // Set the window icon used for Qtk.
-  setWindowIcon(Qtk::getIcon());
+  setWindowIcon(getIcon());
 }
 
 MainWindow::~MainWindow()

src/app/qtkmainwindow.h

@@ -132,6 +132,11 @@ class MainWindow : public QMainWindow
      */
     void setScene(Qtk::Scene * scene);
 
+    /**
+     * @return Default icon to use for Qtk desktop application.
+     */
+    static QIcon getIcon() { return QIcon(":/icons/icon.png"); }
+
   public slots:
     /**
      * Trigger a refresh for widgets related to a scene that has been updated.