test(BA-5983): drop tests added in this PR

Remove the DB-backed revision merge test and the to_draft invariant
test added in this PR. Existing tests in
``tests/unit/common/dto/manager/v2/deployment/test_request.py``
remain — those were updated only to swap ``ModelDefinitionDraft()``
for ``ModelDefinitionInput()`` so they typecheck against the new
field type.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jopemachine

tests/unit/common/dto/manager/v2/deployment/test_request.py

@@ -11,7 +11,6 @@
 from pydantic import ValidationError
 
 from ai.backend.common.api_handlers import SENTINEL, Sentinel
-from ai.backend.common.config import ModelDefinitionDraft
 from ai.backend.common.data.model_deployment.types import DeploymentStrategy
 from ai.backend.common.dto.manager.v2.deployment.request import (
     ActivateDeploymentInput,
@@ -25,14 +24,11 @@
     DeploymentStrategyInput,
     ExtraVFolderMountInput,
     ImageInput,
-    ModelConfigInput,
     ModelDefinitionInput,
     ModelDeploymentMetadataInput,
     ModelDeploymentNetworkAccessInput,
-    ModelHealthCheckInput,
     ModelMountConfigInput,
     ModelRuntimeConfigInput,
-    ModelServiceConfigInput,
     ResourceConfigInput,
     ResourceGroupInput,
     ResourceSlotEntryInput,
@@ -154,49 +150,6 @@ def test_with_extra_mounts(self) -> None:
         assert rev.extra_mounts[0].mount_destination == "/data"
 
 
-class TestModelDefinitionInputToDraft:
-    """``ModelDefinitionInput.to_draft`` converts the all-optional v2
-    input DTO into the ``ModelDefinitionDraft`` consumed by the
-    revision merge chain. The conversion must preserve unset semantics
-    so omitted fields stay unset on the resulting draft — otherwise
-    every ``None`` would clobber lower-priority sources during merge
-    (BA-5983).
-    """
-
-    @pytest.mark.parametrize(
-        "input_dto",
-        [
-            pytest.param(ModelDefinitionInput(), id="empty"),
-            pytest.param(
-                ModelDefinitionInput(models=[ModelConfigInput(name="only-name")]),
-                id="partial_name_only",
-            ),
-            pytest.param(
-                ModelDefinitionInput(
-                    models=[
-                        ModelConfigInput(
-                            name="m",
-                            service=ModelServiceConfigInput(
-                                port=8080,
-                                health_check=ModelHealthCheckInput(path="/healthz"),
-                            ),
-                        )
-                    ]
-                ),
-                id="nested_service_and_health_check",
-            ),
-        ],
-    )
-    def test_to_draft_preserves_set_fields(self, input_dto: ModelDefinitionInput) -> None:
-        draft = input_dto.to_draft()
-        assert isinstance(draft, ModelDefinitionDraft)
-        # ``model_fields_set`` on the draft must match what the caller
-        # explicitly set on the input — that is what the merge logic
-        # uses to distinguish "unset → defer to baseline" from
-        # "explicitly None → clobber baseline".
-        assert draft.model_fields_set == input_dto.model_fields_set
-
-
 class TestExtraVFolderMountInput:
     """Tests for ExtraVFolderMountInput model."""