Remove unused code

Build/lib/convert-clash-meta-mrs.ts

@@ -1,62 +0,0 @@
-import path from 'node:path';
-import fs from 'node:fs';
-import fsp from 'node:fs/promises';
-import { pipeline } from 'node:stream/promises';
-import zlib from 'node:zlib';
-import process from 'node:process';
-
-import { exec } from 'tinyexec';
-import { mkdirp } from './misc';
-import { $$fetch } from './fetch-retry';
-import { ROOT_DIR } from '../constants/dir';
-
-const mihomoBinaryDir = path.join(ROOT_DIR, '.cache/mihomo');
-const mihomoBinaryPath = path.join(mihomoBinaryDir, 'mihomo');
-
-const mihomoBinaryUrl: Partial<Record<NodeJS.Platform, Partial<Record<NodeJS.Architecture, string>>>> = {
-  linux: {
-    x64: 'https://github.com/MetaCubeX/mihomo/releases/download/v1.19.3/mihomo-linux-amd64-compatible-v1.19.3.gz',
-    arm64: 'https://github.com/MetaCubeX/mihomo/releases/download/v1.19.3/mihomo-linux-arm64-v1.19.3.gz'
-  },
-  darwin: {
-    x64: 'https://github.com/MetaCubeX/mihomo/releases/download/v1.19.3/mihomo-darwin-amd64-v1.19.3.gz',
-    arm64: 'https://github.com/MetaCubeX/mihomo/releases/download/v1.19.3/mihomo-darwin-arm64-v1.19.3.gz'
-  }
-};
-
-async function ensureMihomoBinary() {
-  await mkdirp(mihomoBinaryDir);
-  if (!fs.existsSync(mihomoBinaryPath)) {
-    const writeStream = fs.createWriteStream(mihomoBinaryPath);
-
-    const downloadUrl = mihomoBinaryUrl[process.platform]?.[process.arch];
-    if (!downloadUrl) {
-      throw new Error(`Unsupported platform: ${process.platform} ${process.arch}`);
-    }
-
-    const res = await $$fetch(downloadUrl);
-
-    if (!res.ok || !res.body) {
-      throw new Error(`Failed to download mihomo binary: ${res.statusText}`);
-    }
-
-    const gunzip = zlib.createGunzip();
-
-    await pipeline(
-      res.body,
-      gunzip,
-      writeStream
-    );
-  }
-  await fsp.chmod(mihomoBinaryPath, 0o755);
-}
-
-export async function convertClashMetaMrs(type: 'domain', format: 'text', input: string, output: string) {
-  await ensureMihomoBinary();
-
-  const { stderr } = await exec(mihomoBinaryPath, ['convert-ruleset', type, format, input, output]);
-
-  if (stderr) {
-    throw new Error(stderr);
-  }
-}