kvm: let libvirt remove RBD snapshots on volume delete

[wido]

Description

LibvirtStorageAdaptor#deletePhysicalDisk manually connected to Ceph via librados/librbd to unprotect and remove every snapshot of an RBD image before asking libvirt to delete the volume. libvirt's RBD storage backend has supported VIR_STORAGE_VOL_DELETE_WITH_SNAPSHOTS since 1.2.20, which does the same unprotect/remove internally. Pass that flag instead and drop the manual cleanup.

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 19.65%. Comparing base (4f11707) to head (b2c5e04).

Files with missing lines	Patch %	Lines
.../hypervisor/kvm/storage/LibvirtStorageAdaptor.java	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main   #13763   +/-   ##
=========================================
  Coverage     19.65%   19.65%           
+ Complexity    19792    19789    -3     
=========================================
  Files          6368     6368           
  Lines        574881   574843   -38     
  Branches      70351    70349    -2     
=========================================
- Hits         112970   112963    -7     
+ Misses       449639   449607   -32     
- Partials      12272    12273    +1     

Flag	Coverage Δ
uitests	3.41% <ø> (ø)
unittests	20.92% <0.00%> (+<0.01%)	⬆️

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[weizhouapache]

nice !