remove some unused deps

src/cli/export.ts

@@ -10,10 +10,6 @@ import { dest } from '../config';
 
 const app = polka();
 
-function read_json(file: string) {
-	return JSON.parse(sander.readFileSync(file, { encoding: 'utf-8' }));
-}
-
 export default async function exporter(export_dir: string) {
 	const build_dir = dest();
 

src/cli/index.ts

@@ -2,7 +2,6 @@ import * as fs from 'fs';
 import * as path from 'path';
 import * as child_process from 'child_process';
 import sade from 'sade';
-import mri from 'mri';
 import chalk from 'chalk';
 import prettyMs from 'pretty-ms';
 import help from './help.md';