This avoids the mess where we override db_fatal for teqsts, and keeps it
generic.
Also allows us to get rid of one #if DEVELOPER, and an ugly global for
bookkeeper.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Because it used internal routines, it didn't pass operations through the
db hook! So make it use the generic routines, with the twist that they
are not translated.
And when we use this in a migration hook, we're actually in a
transaction.
This, in turn, introduces an issue: we need to be outside a transaction
to "PRAGMA foreign_keys = OFF", but completing the transaction when
there is a db hook actually enters the io loop, freeing the tmpctx!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
