怎么直接在Dockerfile中删除中间镜像

Dockerfile内容如下

FROM node:14.16.1 AS builder
WORKDIR /app
COPY ./ /app/
RUN npm install
RUN npm run build
FROM nginx
COPY --from=builder app/dist /usr/share/nginx/html
EXPOSE 80

构建镜像之后会产生无用的中间镜像，应该怎么直接在Dockerfile中删除呢

Dockerfile只能用来构建镜像，无法删除镜像