Remove redundant ts-node things (#9335)

packages/backend/test/loader.js

@@ -1,34 +0,0 @@
-/**
- * ts-node/esmローダーに投げる前にpath mappingを解決する
- * 参考
- * - https://github.com/TypeStrong/ts-node/discussions/1450#discussioncomment-1806115
- * - https://nodejs.org/api/esm.html#loaders
- * ※ https://github.com/TypeStrong/ts-node/pull/1585 が取り込まれたらこのカスタムローダーは必要なくなる
- */
-
-import { resolve as resolveTs, load } from 'ts-node/esm';
-import { loadConfig, createMatchPath } from 'tsconfig-paths';
-import { pathToFileURL } from 'url';
-
-const tsconfig = loadConfig();
-const matchPath = createMatchPath(tsconfig.absoluteBaseUrl, tsconfig.paths);
-
-export function resolve(specifier, ctx, defaultResolve) {
-	let resolvedSpecifier;
-	if (specifier.endsWith('.js')) {
-		// maybe transpiled
-		const specifierWithoutExtension = specifier.substring(0, specifier.length - '.js'.length);
-		const matchedSpecifier = matchPath(specifierWithoutExtension);
-		if (matchedSpecifier) {
-			resolvedSpecifier = pathToFileURL(`${matchedSpecifier}.js`).href;
-		}
-	} else {
-		const matchedSpecifier = matchPath(specifier);
-		if (matchedSpecifier) {
-			resolvedSpecifier = pathToFileURL(matchedSpecifier).href;
-		}
-	}
-	return resolveTs(resolvedSpecifier ?? specifier, ctx, defaultResolve);
-}
-
-export { load };