remove debug print

src/DynamicObject.py

@@ -15,7 +15,6 @@ class DynamicObject():
         self.y = 0 # y coordinate in mm
         self.r = 0 # angle in radians
 
-        print("hello")
         sprite_img = image.load(sprite_file_dir)
         sprite_img.anchor_x = sprite_img.width // 2
         sprite_img.anchor_y = sprite_img.height // 2