Remove unused code that was used in the spare pool feature.
Cleaned up unused amphora-related code including:
- get_create_amphora_flow function and its wrapper
- MarkAmphoraReadyInDB task class and related tests
- MARK_AMPHORA_READY_INDB constant
- AMPHORA_READY status constant and all references
Updated amphora deletion logic to only allow deletion when
amphora status is ERROR, which is the correct behavior since
AMPHORA_ALLOCATED amphorae should not be deletable.
Change-Id: I9ad69c7998509669cb6f76379810bbb56d887e80
Generated-By: Claude Code
Signed-off-by: Gregory Thiemonge <gthiemon@redhat.com>
b5aa65526e