Eliminate bogus deprecation warning
Eliminate bogus deprecation warning

There's nothing about hashing a ResourceDefinition that is deprecated or is
ever going away - in fact, the actual implementation of __hash__() is in
ResourceDefinitionCore, and it's only explicitly included in
ResourceDefinition because there is also an __eq__() method which would
otherwise cause Python 3 to override __hash__ with None (per
46233d2c2a7938d6e97f0285f0afad6c2e1baf00). Therefore it's
completely wrong to log a warning, since everything will continue to work
fine when ResourceDefinition is replaced by ResourceDefinitionCore.

Change-Id: I33fc8727c9ec92580a2e2e7f4475d0f4fff2234b
Closes-Bug: #1546362

noironetworks/heat,steveb/heat,noironetworks/heat,steveb/heat,dims/heat,cwolferh/heat-scratch,jasondunsmore/heat,jasondunsmore/heat,cwolferh/heat-scratch,openstack/heat,openstack/heat,dims/heat