[bsp] remove old head file include for RTGUI

bsp/gd32450z-eval/applications/rtgui_demo.c

@@ -31,7 +31,6 @@
 
 #include <rtgui/widgets/window.h>
 #include <rtgui/dc.h>
-//#include <rtgui/dc_hw.h>
 
 struct rtgui_win *main_win;
 rt_bool_t dc_event_handler(struct rtgui_object *object, rtgui_event_t *event);

bsp/stm32f429-apollo/applications/rtgui_demo.c

@@ -18,7 +18,6 @@
 
 #include <rtgui/widgets/window.h>
 #include <rtgui/dc.h>
-#include <rtgui/dc_hw.h>
 
 #include "finsh.h"
 #include "rtgui_demo.h"

bsp/stm32f429_armfly/applications/rtgui_demo.c

@@ -31,7 +31,6 @@
 
 #include <rtgui/widgets/window.h>
 #include <rtgui/dc.h>
-#include <rtgui/dc_hw.h>
 
 struct rtgui_win *main_win;
 rt_bool_t dc_event_handler(struct rtgui_object *object, rtgui_event_t *event);