docs: remove circleci and caretaker README badges

Author: clydin

README.md

@@ -2,7 +2,6 @@
 
 <!-- Badges section here. -->
 [![Build Status](https://img.shields.io/travis/angular/angular-cli/master.svg?label=travis)][travis-badge-url]
-[![CircleCI branch](https://img.shields.io/circleci/project/github/angular/angular-cli/master.svg?label=circleci)](https://circleci.com/gh/angular/angular-cli)
 [![Dependency Status][david-badge]][david-badge-url]
 [![devDependency Status][david-dev-badge]][david-dev-badge-url]
 
@@ -12,7 +11,6 @@
 [![npm](https://img.shields.io/npm/dm/@angular/cli.svg)][npm-badge-url]
 
 [![Join the chat at https://gitter.im/angular/angular-cli](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/angular/angular-cli?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Caretaker](https://img.shields.io/badge/caretaker-filipesilva-blue.svg)](https://github.com/filipesilva)
 
 [![GitHub forks](https://img.shields.io/github/forks/angular/angular-cli.svg?style=social&label=Fork)](https://github.com/angular/angular-cli/fork)
 [![GitHub stars](https://img.shields.io/github/stars/angular/angular-cli.svg?style=social&label=Star)](https://github.com/angular/angular-cli)