refactor: rename napi to netease_api

napi/module/cellphone_existence_check.js

@@ -1,20 +0,0 @@
-// 检测手机号码是否已注册
-
-module.exports = (query, request) => {
-  const data = {
-    cellphone: query.phone,
-    countrycode: query.countrycode,
-  };
-  return request(
-    'POST',
-    `https://music.163.com/eapi/cellphone/existence/check`,
-    data,
-    {
-      crypto: 'eapi',
-      cookie: query.cookie,
-      proxy: query.proxy,
-      url: '/api/cellphone/existence/check',
-      realIP: query.realIP,
-    },
-  );
-};