Remove wait for reachable
Remove wait for reachable

We have no plan to provide an interface to wait for anything.

Change-Id: If7b639cc4e3151153517c5c1e3bdf981269dc87d

mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk