perf: remove JSDoc from .js files

JSDoc comments remain in `.d.ts` files.

Author: sxzz

src/browser.ts

@@ -2,9 +2,6 @@ import { setup } from './core.ts'
 import { humanize } from './utils.ts'
 import type { Debug, Debugger } from './types.ts'
 
-/**
- * Colors.
- */
 export const colors: string[] = [
   '#0000CC',
   '#0000FF',

tsdown.config.ts

@@ -12,6 +12,7 @@ export default defineConfig([
       }
     },
     hash: false,
+    minify: 'dce-only',
   },
   {
     entry: {