Remove obsolete vmware/esx tools

Our Docs have updated information in and the README is stale.
http://docs.openstack.org/trunk/config-reference/content/vmware.html#vmware-prereqs

The guest_tool.py was once used a long time ago to setup
networking by pulling information from esx and setting
the OS details in the VM. This is no longer used or needed as
we have better ways to do the same using config drive or metadata service
http://docs.openstack.org/trunk/config-reference/content/vmware.html#VMware_networking
http://docs.openstack.org/user-guide/content/config-drive.html
http://cloudinit.readthedocs.org/en/latest/topics/datasources.html#config-drive

Change-Id: I8c2ba52cffbcf9be50fd0e2f7b2bb1da8089e324
Merge "Remove obsolete vmware/esx tools"
Merge commit 'refs/changes/41/127941/3' of git://gold.eng.hq.xensource.com/git/github/openstack/nova into tmpbranch