Rewrite demo function using screenplay helper

Author: wangdino

demo.py

@@ -53,18 +53,12 @@ def main():
             lcd.displayImage(disp.txtDisp('Rokkitt:\n'+en_multi, 'Rokkitt',  resize=1))
             lcd.delay(2000)
             lcd.clearLCD()
-            lcd.displayImage(disp.txtDisp('Wenq:\n'+en_multi, 'Wenq', resize=1))
-            lcd.delay(2000)
-            lcd.clearLCD()
             lcd.displayImage(disp.txtDisp('NotoSansSC:\n'+en_multi, 'NotoSansSC', resize=1))
             lcd.delay(2000)
             lcd.clearLCD()
             lcd.displayImage(disp.txtDisp('NotoSerifSC:\n'+en_multi, 'NotoSerifSC', resize=1))
             lcd.delay(2000)
             lcd.clearLCD()
-            lcd.displayImage(disp.txtDisp('Zfull:\n'+en_multi, 'Zfull', resize=1))
-            lcd.delay(2000)
-            lcd.clearLCD()
             lcd.displayImage(disp.txtDisp(demo2, 'Wenq', 30, resize=1, align=1))
             lcd.delay(1000)
             lcd.clearLCD()
@@ -77,9 +71,6 @@ def main():
             lcd.displayImage(disp.txtDisp(zh_multi, 'NotoSerifSC', resize=1))
             lcd.delay(2000)
             lcd.clearLCD()
-            lcd.displayImage(disp.txtDisp(zh_multi, 'Zfull', resize=1))
-            lcd.delay(2000)
-            lcd.clearLCD()
             lcd.displayImage(disp.txtDisp(demo3, 'Rokkitt', 30, resize=1, align=1))
             lcd.delay(1000)
             lcd.clearLCD()