Remove the "quick_login" member, which is unnecessary.

Remove the "quick_login" member, which is unnecessary.

	* camel-service.h: Remove the "quick_login" member, which is
	unnecessary.

	* providers/smtp/camel-smtp-transport.c (smtp_auth): Remove the
	references to quick_login and fix this to use the CamelSasl
	interfaces correctly to do the same thing.
	(connect_to_server): Split this out of smtp_connect
	(smtp_connect): Use connect_to_server. When re-EHLO'ing after
	auth, ignore errors.
	(query_auth_types): Use connect_to_server rather than
	smtp_connect, so it doesn't try to authenticate. Add LOGIN
	authtype to the list of authtypes to check for.

	* providers/smtp/camel-smtp-provider.c
	(camel_provider_module_init): Add LOGIN authtype to the authtypes
	list explicitly.

	* camel-sasl.c (camel_sasl_authtype_list): Don't list LOGIN here:
	it's not a real SASL authtype and is only used for SMTP.

	* camel-sasl-plain.c:
	* camel-sasl-login.c:
	* camel-sasl-kerberos4.c:
	* camel-sasl-cram-md5.c:
	* camel-sasl-anonymous.c:
	* providers/pop3/camel-pop3-provider.c: Remove "quick_login"
	argument from authtypes.