Fixing clean-esx util to accommodate log config changes for vDVS driver

[shuklanirdesh82]

fixes #1160

Correcting clen-esx routine .. there was a bug which was not cleaning up correctly hence there was a workaround added into deploy-esx which was wrong.

Testing done: yes (locally)

from dev machine

make clean-all build-all deploy-esx test-esx
:::::::::::::::::::
:::::::::::::::::::
:::::::::::::::::::
make clean-esx

on ESX

make clean-all build-all deploy-esx test-esx result:

[root@promc-2n-dhcp105-97:~] ls /tmp/
docker-volume-vsphere   nfsgssd_krb5cc          probe.session           vmdk_ops_unittest27325
[root@promc-2n-dhcp105-97:~] ls /etc/vmware/vmdkops/
auth-db                               auth-db.bak_Tue_Jun_27_14:41:30_2017  log_config.json
auth-db.bak_Sat_Jun_24_00:20:59_2017  auth-db.bak_Tue_Jun_27_14:41:58_2017

make clean-esx result:

[root@promc-2n-dhcp105-97:~] ls /etc/vmware/vmdkops/
auth-db                               auth-db.bak_Sat_Jun_24_00:20:59_2017  auth-db.bak_Tue_Jun_27_14:41:30_2017  auth-db.bak_Tue_Jun_27_14:41:58_2017
[root@promc-2n-dhcp105-97:~] ls /tmp/
nfsgssd_krb5cc  probe.session

[lipingxue]

LGTM