TSLint's support is discontinued and we're deprecating its support in Angular CLI.

**Is your feature request related to a problem? Please describe.**
No, just an enhancement 

**Describe the solution you'd like**
To opt-in using the community driven ESLint builder, see: https://github.com/angular-eslint/angular-eslint#migrating-an-angular-cli-project-from-codelyzer-and-tslint.

