Remove redundant KC_TRNS and KC_NO fillers in remaining keymaps (#5154)

keyboards/ergotravel/keymaps/ian/keymap.c

@@ -10,10 +10,6 @@ enum custom_layers {
     _QWERTY
 };
 
-
-
-#define _______ KC_TRNS
-#define XXXXXXX KC_NO
 #define BASELYR TO(_COLEMAK) // base layer
 #define LOWER MO(_LOWER) // momentary lower layer
 #define RAISE MO(_RAISE) // momentary raise layer