chore: remove unused TYPESCRIPT_DEFAULT_NODE_VERSION variable

Author: JounQin

src/index.ts

@@ -60,7 +60,6 @@ const {
 export const MTS_SUPPORTED_NODE_VERSION = 16
 export const LOADER_SUPPORTED_NODE_VERSION = 20
 export const TYPESCRIPT_DEFAULT_NODE_VERSION = 23.6
-export const TYPESCRIPT_SUPPORTED_NODE_VERSION = 22.1
 
 const NODE_TYPESCRIPT = process.features.typescript
 const NODE_VERSION = Number.parseFloat(process.versions.node)

test/ts-runner.spec.ts

@@ -10,7 +10,6 @@ import type { AsyncWorkerFn } from './types.js'
 import {
   MTS_SUPPORTED_NODE_VERSION,
   TYPESCRIPT_DEFAULT_NODE_VERSION,
-  TYPESCRIPT_SUPPORTED_NODE_VERSION,
   TsRunner,
 } from 'synckit'
 
@@ -138,7 +137,7 @@ test(TsRunner.TSX, async () => {
 test(TsRunner.Node, async () => {
   const { createSyncFn } = await import('synckit')
 
-  if (nodeVersion < TYPESCRIPT_SUPPORTED_NODE_VERSION) {
+  if (!process.features.typescript) {
     // eslint-disable-next-line jest/no-conditional-expect
     expect(() =>
       createSyncFn<AsyncWorkerFn>(workerMtsPath, {