Another try at fixing broken mouse behavior when a windows system

has multiple monitors with 0,0 of the virtual desktop not at the
upper-left.

lib/platform/CMSWindowsPrimaryScreen.cpp

@@ -310,13 +310,6 @@ CMSWindowsPrimaryScreen::onPreDispatch(const CEvent* event)
 			m_y = static_cast<SInt32>(msg->lParam);
 
 			if (!isActive()) {
-				// shift by origin of virtual screen.  the synergy
-				// hook DLL does not account for
-				SInt32 w, h;
-				m_screen->getShape(x, y, w, h);
-				x += m_x;
-				y += m_y;
-
 				// motion on primary screen
 				m_receiver->onMouseMovePrimary(x, y);
 			}