diff --git a/include/interface.h b/include/interface.h
index 3fead7a35..170992ebd 100644
--- a/include/interface.h
+++ b/include/interface.h
@@ -1004,10 +1004,6 @@ typedef enum display_len
   DISPLAY_LEN_MAX_600   = 8 + 128,
   DISPLAY_LEN_MIN_900   = 32,
   DISPLAY_LEN_MAX_900   = 32,
-  DISPLAY_LEN_MIN_910   = 32 + 1 + 0,
-  DISPLAY_LEN_MAX_910   = 32 + 1 + SALT_MAX,
-  DISPLAY_LEN_MIN_910H  = 32 + 1 + 0,
-  DISPLAY_LEN_MAX_910H  = 32 + 1 + (SALT_MAX * 2),
   DISPLAY_LEN_MIN_1000  = 32,
   DISPLAY_LEN_MAX_1000  = 32,
   DISPLAY_LEN_MIN_1100  = 32 + 1 + 0,