Description of problem:
You can run the command "heat hook-clear" on any resource in the stack, even if there is no hook defined on it, and no error or warning message is returned.


How reproducible:
100%


Steps to Reproduce:
1. heat hook-clear --pre-create overcloud ControllerNodesPostDeployment
2. heat hook-clear --pre-create overcloud ControllerNodesPostDeployment


Actual results:
No error or warning


Expected results:
I should have gotten at least 1 error because I cleared the breakpoint twice. In this case, the breakpoint never existed in the first place so I was expecting 2 errors.