Remove a hangover from before we had Ninject wired in

[adrianbanks]

I'm a bit confused by this. I can only think that I don't understand how Ninject's convention-based binding works.

I appear to need a binding for:

IMailHostSettingsProvider -> SmtpHostSettingsProvider

but not for:

IMessageFactory - > SendGridMessageFactory IEmailSender -> SendGridEmailSender IAppSettingsProvider -> WebConfigurationAppSettingsProvider

I don't understand why the difference.

[alastairs]

I've had a look and can't figure it out as yet either :unamused:

[adrianbanks]

This change does work, but I don't really understand the difference in the configuration.