Log config changes for vDVS driver are not applied on CI

[shuklanirdesh82]

Accommodate log_config.json changes on CI

As per following code, any changes to log_config.json file from the PR is not in effect if the older log_config.json present on ESX (CI system)

https://github.com/vmware/docker-volume-vsphere/blob/master/esx_service/utils/log_config.py#L80

def configure(config_file=LOG_CONFIG_FILE):
    """
    Checks if the json config file exists, and if it does not, creates it from
    hardcoded defaults. Then loads log config from the  file.
    Returns log file name.
    """
    generatedConf = False
    # if the conf file is not there, create it:
    if not os.path.isfile(config_file):

Need to correct deploy_tools.sh as well; desploy_esx shouldn't be responsible for cleaning up any leftover from the VIB installation.

• The ideal way to achieve is removing older files from CI's ESX vms > recreate snapshots > improve cleanESX routine.

• Need to remove following lines

1. https://github.com/vmware/docker-volume-vsphere/blob/master/misc/scripts/deploy-tools.sh#L156
2. https://github.com/vmware/docker-volume-vsphere/blob/master/misc/scripts/deploy-tools.sh#L216

/CC @msterin @lipingxue