Re-follow the PR #4634 (Set language display charset in language.h)

Marlin/language_da.h

@@ -31,8 +31,6 @@
 #define LANGUAGE_DA_H
 
 #define MAPPER_C2C3
-// Define SIMULATE_ROMFONT to see what is seen on the character based display defined in Configuration.h
-//#define SIMULATE_ROMFONT
 #define DISPLAY_CHARSET_ISO10646_1
 
 #define WELCOME_MSG                         MACHINE_NAME " er klar"