fix: nil: Do not log no root hints of _bind chaos view

The "no root hints for view X" message must not be shown for the default
_bind/CH view. However, it is shown since 27c4f68dcc1 (part of effective
configuration changes).

The reason is that since 27c4f68dcc1, `configure_views()` now processes
a single list of views, which contains both builtin and user views as
they are both part of the effective configuration. The changes omit the
(now removed, since 6b5f714e53) `need_hints` bool that was disabling the
warning for the builtin view (_bind/CH).

This disable that log again when configuring _bind/CH view.

Merge branch 'colin/nohintswarn-bindchaos' into 'main'

See merge request isc-projects/bind9!11264