[UP-4139] Remove the reset password portlet and move that functionality ...

...into the login portlet.

[UP-4139] Rollback some whitespace only changes caused by IDE settings.
Are we only using loginToken and username once?  (Actually looks like we may use loginToken in a subflow.)  If so, I'd advocate for just using requestParameters.loginToken directly in the test attribute, rather than setting up a flowScope variable in on-start.