refactor(@angular/cli): remove node.js check in extract-i18n
refactor(@angular/cli): remove node.js check in extract-i18n

This is redundant since this is covered by https://github.com/angular/angular-cli/blob/e4e15058cb7a3612cb6ac31cda175783042c5a1c/packages/angular/cli/lib/cli/index.ts#L26

angular/angular-cli,Brocco/angular-cli,Brocco/angular-cli,clydin/angular-cli,geofffilippi/angular-cli,angular/angular-cli,geofffilippi/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,angular/angular-cli,clydin/angular-cli,Brocco/angular-cli,clydin/angular-cli,angular/angular-cli,clydin/angular-cli,geofffilippi/angular-cli,Brocco/angular-cli