chore(@vant/cli): remove sass

packages/vant-cli/src/compiler/compile-sass.ts

@@ -1,5 +1,3 @@
-import { renderSync } from 'sass';
-
 // allow to import from node_modules
 // @import "~package-name/var.scss"
 const tildeImporter = (url: string) => {
@@ -16,6 +14,7 @@ const tildeImporter = (url: string) => {
 };
 
 export async function compileSass(filePath: string) {
+  const { renderSync } = require('sass');
   const { css } = renderSync({ file: filePath, importer: tildeImporter });
   return css;
 }

packages/vant-cli/src/module.d.ts

@@ -1,6 +1,5 @@
 // some modules with missing type definitions
 declare module 'less';
-declare module 'sass';
 declare module 'execa';
 declare module 'hash-sum';
 declare module 'clean-css';