Amend dynamic imports

src/util/card-type-util.ts

@@ -1,14 +1,12 @@
 import type {
   Card,
   CardType,
-  MonsterCard, MonsterCardSubType,
+  MonsterCard,
   MonsterCardType,
   SpellCard, SpellCardType,
   TrapCard, TrapCardType
 } from "../api/openapi";
 
-type CardSubTypes = MonsterCardType | TrapCardType | SpellCardType
-
 export const getCardType = (card: Card) => {
   switch (card.cardType) {
     case "MONSTER":
@@ -26,14 +24,6 @@ export const isMonsterCard = (card: Card): card is MonsterCard => {
   return card.cardType === "MONSTER"
 }
 
-export const isTrapCard = (card: Card): card is TrapCard => {
-  return card.cardType === "TRAP"
-}
-
-export const isSpellCard = (card: Card): card is SpellCard => {
-  return card.cardType === "SPELL"
-}
-
 export const getMonsterCardType = (monsterCard: MonsterCard) => {
   return `${monsterCard.type} MONSTER `
 }