Bug 9122: fix the problem when writing-off a fine

Bug 9122: fix the problem when writing-off a fine

The problem was introduced by the addition of accountlines_id in bug 7671

The WriteOffFee sub was called with accountlines_id as second parameter
but still dealing with the accountno column.

As a result, the UPDATE was failing (updating nothing), and the fine
note written off even if the writeoff itself was saved. In other words:
the writeoff was not "attached" to the fine.

This patch fixes the problem.

Test plan: do what katrin says in initial description of the problem:
- add some fines manually, I did 'new card' and sundry
- try writing off all of them or one of them
- the fine is correctly written off

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Passed-QA-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>