tests: Do not parse global configuration when testing server
This removes the tests which uses external configuration files. This
makes the tests no not change behaviour depending on the environment
they are being executed.
Signed-off-by: Anderson Toshiyuki Sasaki <email@example.com>
Reviewed-by: Andreas Schneider <firstname.lastname@example.org>
Reviewed-by: Jakub Jelen <email@example.com>
(cherry picked from commit 85239c8ea04b32ce84280508d6860f8032a55d83)