Update repository.blade.php

Removes time-based code generation and replaces with random code generation used in generateToken() in EloquentPasswordService. Also removes unnecessary whitespace for the line.

I personally do not like time-based code generation because a potential attacker would know the username he/she entered, and there would only be a small time window the attacker needs to test with before getting the real confirmation code. That defeats the point of a confirmation code, because that could potentially lead to unsolicited emails being sent to the actual email address' account holder.