Refactor error passing to error handler in oauth2.controller.ts

[shakedmanes]

Todo:

Refactor error passing to error handler in oauth2.controller.ts - instead passing the error to done(err), just throw err.

[shakedmanes]

Conclusion:

There's no need for that refactor cause the functions in oauth2.controller.ts are must pass the error in done function cause without it, the error will not be passed to the error handler.