remove obtuse section about "bundled bind parameters"

remove obtuse section about "bundled bind parameters"

Just looking for basics on insert in the first pages
of the tutorial I see this weird detour into something that
nobody ever uses and definitely isn't going to make sense
to the people I see complaining about our docs on twitter,
remove this.   the tutorial probably needs a big sweep
for wordy obtuse things.  the userbase is changing and
we really have a lot of brand-new-to-programming types coming
in.

Change-Id: I3bb11f0399e55edbb8f874e7eb63c40616b04e8b