Revert "openhcl: plumb AziHsmEnabled to UefiConfigBlob and dps (#2767)"

[maheeraeron]

This reverts commit 07a1184.

[github-actions]

⚠️ Unsafe Code Detected

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[Copilot]

Pull request overview

This PR reverts commit 07a1184 which added Azure Identity HSM (AziHsm) support to OpenVMM's UEFI firmware configuration. The revert cleanly removes all traces of the azi_hsm_enabled configuration flag from the codebase.

Changes:

• Removed azi_hsm_enabled configuration field from all layers of the stack (CLI args, config structs, UEFI config blob, GET protocol)
• Removed two VMM integration tests (azi_hsm_present and azi_hsm_absent)
• Corrected the UEFI Flags bitfield reserved bits from 33 to 34 after removing the 1-bit flag

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
vmm_tests/vmm_tests/tests/tests/multiarch.rs	Removed two AziHsm integration tests
vm/loader/src/uefi/config.rs	Removed azi_hsm_enabled flag from Flags bitfield and updated reserved bits
vm/devices/get/guest_emulation_transport/src/client.rs	Removed field assignment in client
vm/devices/get/guest_emulation_transport/src/api.rs	Removed azi_hsm_enabled from API structs
vm/devices/get/guest_emulation_device/src/test_utilities.rs	Removed field from test utilities
vm/devices/get/guest_emulation_device/src/resolver.rs	Removed field from resource resolver
vm/devices/get/guest_emulation_device/src/lib.rs	Removed field from GuestConfig and channel serialization
vm/devices/get/get_resources/src/lib.rs	Removed field from resource definitions
vm/devices/get/get_protocol/src/dps_json.rs	Removed field from DPS JSON protocol
petri/src/vm/openvmm/construct.rs	Removed field usage in VM construction
petri/src/vm/mod.rs	Removed with_azi_hsm_enabled builder method and UefiConfig field
petri/src/vm/hyperv/mod.rs	Removed field destructuring in Hyper-V backend
openvmm/openvmm_entry/src/lib.rs	Removed field usage in VM config construction
openvmm/openvmm_entry/src/cli_args.rs	Removed CLI argument definition
openvmm/openvmm_defs/src/config.rs	Removed field from LoadMode enum
openvmm/openvmm_core/src/worker/vm_loaders/uefi.rs	Removed builder method call and field from UefiLoadSettings
openvmm/openvmm_core/src/worker/dispatch.rs	Removed field destructuring in dispatch
openhcl/underhill_core/src/worker.rs	Removed field destructuring in isolated config validation
openhcl/underhill_core/src/loader/mod.rs	Removed flag setter in UEFI config writer