♻️ 抽取 state 校验方法

src/main/java/me/zhyd/oauth/utils/AuthChecker.java

@@ -66,15 +66,4 @@ public class AuthChecker {
             throw new AuthException(AuthResponseStatus.ILLEGAL_CODE);
         }
     }
-
-    /**
-     * 校验回调传回的state
-     *
-     * @param state {@code state}一定不为空
-     */
-    public static void checkState(String state) {
-        if (StringUtils.isEmpty(state) || !AuthStateCache.containsKey(state)) {
-            throw new AuthException(AuthResponseStatus.ILLEGAL_REQUEST);
-        }
-    }
 }