Stop hardcoding results suffix in push_to_db

Stop hardcoding results suffix in push_to_db

Adding results in url is useless as it is defined in results
section in config_functest.yaml.

It allows defining the full name in case of dumping to file (see
decorator.py). The commented local file is the value required by
dovetail.

Co-Authored-By: Cédric Ollivier <cedric.ollivier@orange.com>
Change-Id: I35ba9b34d99e138292f099934e28585ee8b85604
Signed-off-by: MatthewLi <matthew.lijun@huawei.com>
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>