[CalDAV] Stop re-trying authentication with bearer authenticator
[CalDAV] Stop re-trying authentication with bearer authenticator

The bearer authenticator is used for OAuth2 authentication, which
cannot ask for passwords, thus do not let it behave like that and
simply return the credentials were rejected, instead of reusing
those stored again and again. This could eventually lock Google
accounts too.

tintou/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server