refactor(news): remove retired research workflow

backend/tests/test_provider_settings.py

@@ -53,26 +53,6 @@ def test_patch_provider_default_contract(trading, monkeypatch, initial, requeste
         app.dependency_overrides.clear()
 
 
-@pytest.mark.parametrize('enabled', [True, False])
-def test_delete_provider_handles_news_risk_reference(trading, monkeypatch, enabled):
-    from fastapi import HTTPException
-    from alphapulse.api import settings
-    reference = SimpleNamespace(enabled=enabled, provider_id=1, second_provider_id=1, third_provider_id=1)
-    provider = SimpleNamespace(id=1, is_default=False)
-    session = SimpleNamespace(scalar=AsyncMock(side_effect=[None, reference]), delete=AsyncMock(),
-        flush=AsyncMock(), commit=AsyncMock())
-    monkeypatch.setattr(settings, 'get_provider', AsyncMock(return_value=provider))
-    if enabled:
-        with pytest.raises(HTTPException) as error:
-            asyncio.run(settings.delete_provider(1, session))
-        assert error.value.status_code == 409
-        session.delete.assert_not_awaited()
-        assert reference.provider_id == 1
-    else:
-        asyncio.run(settings.delete_provider(1, session))
-        assert reference.provider_id is None
-        session.delete.assert_awaited_once_with(provider)
-        session.commit.assert_awaited_once()
 
 
 @pytest.mark.parametrize('protocol,base_url', [('openai', 'https://example.invalid/v1/'), ('anthropic', 'https://example.invalid/')])