changing the VMware tool repository from ESXi's /productlocker (symbolic link)to shared datastore location was implemented using powerShell. it can also be implemented using the vCenter MOB console without rebooting the ESXi host.
But I am not able to revert it back to ESXi's /productlocker (symbolic link) using PowerShell or through vCenter MOB console.
note:- vmtools is located in ESXi's /productlocker location which is the symbolic link to "/locker/packages/vmtoolsRepo" and locker is symbolic link to "/var/bin/vmware/osdata/locker"
summing up:- vmware tool repository changed from "/locker/packages/vmtoolsRepo" to "/vmfs/volumes/shared_datastore". So reverting back is not happening.