pytest/sudo: Modify fixture to restore sssd.conf
Modify set_case_sensitive_false fixture to restore sssd.conf
back to the original sssd.conf after running test_case_senitivity
test case
Signed-off-by: Niranjan M.R <mrniranjan@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>