dbaccess: don't try to migrate read-only file

It's going to throw IOException anyway.

This fixes CppunitTest_dbaccess_hsqldb_test on read-only file system.

Change-Id: Ifc8a4791ab9a1a8d3e0f1e67d65e10dac458147c
Reviewed-on: https://gerrit.libreoffice.org/67028
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
(cherry picked from commit 577a9708ea9594d60b66c1c71d24175c66d24096)
Reviewed-on: https://gerrit.libreoffice.org/67065
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

0 files changed, 0 insertions, 0 deletions