Migrate DomService to use NgZone instead of ManagedZone. These have the same behavior and it allows one less dependency for new clients, and teams trying to use widgets piecewise.
Migrate DomService to use NgZone instead of ManagedZone. These have the same behavior and it allows one less dependency for new clients, and teams trying to use widgets piecewise.

Also remove ng1 code since all ng1 instances are using ads/acx/ version in preparation for Jurassic Park.

Global Presubmit: https://test.corp.google.com/OCL:172011686:BASE:172790257:1508445183234:7c96f1dc

PiperOrigin-RevId: 172826131

matanlurey/angular,matanlurey/angular,matanlurey/angular,kevmoo/angular,angulardart/angular,angulardart/angular,chalin/angular2,chalin/angular2,angulardart/angular,kevmoo/angular,chalin/angular2,kevmoo/angular