#### Bug, feature request, or proposal: Bug #### What is the expected behavior? The chip should be removed when clicking the remove button. #### What is the current behavior? clicking remove does nothing #### What are the steps to reproduce? Using the autocomplete example on the [angular website](https://material.angular.io/components/chips/overview#chip-input)... try and remove a chip. #### Which versions of Angular, Material, OS, TypeScript, browsers are affected? Material 6.0.1