HPCC-10445 Python crashed at exit of Regression Suite in overnight build and
test

Remove forced logging.shutdown() function call at the end of Regression Suite.

Signed-off-by: Attila Vamos <attila.vamos@gmail.com>
Merge pull request #5163 from AttilaVamos/HPCC-10445-fix

HPCC-10445 Python crashed at exit of Regression Suite in overnight build and  test

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>