Bug 18536: [QA Follow-up] Tiny regex simplification

Bug 18536: [QA Follow-up] Tiny regex simplification

Simplify regex for removing table name.
No need to escape a dot between the square brackets. No need to specify a
number of 1 between parentheses.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 63c6eaca8d649cb7864b90e5e1ee9ac019daffdf)
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
(cherry picked from commit 3166154e876b871ed97c1eaf1f02c0c26fc65c26)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>