fix: clean up test imports (#1600)

# What does this PR do?
- Clean up dead SDK code in
https://github.com/meta-llama/llama-stack-client-python/pull/198
- Regen for local cache key issue

[//]: # (If resolving an issue, uncomment and update the line below)
[//]: # (Closes #[issue-number])

## Test Plan
```
pytest -v -s --nbval-lax ./docs/getting_started.ipynb

LLAMA_STACK_CONFIG=fireworks pytest -v tests/integration/ --text-model meta-llama/Llama-3.3-70B-Instruct
```

- CI:
1382351211
<img width="1658" alt="image"
src="https://github.com/user-attachments/assets/1a2de383-35a2-47a0-8d80-d666d4970c34"
/>


[//]: # (## Documentation)

tests/integration/datasetio/test_datasetio.py

@@ -9,11 +9,25 @@ import mimetypes
 import os
 from pathlib import Path
 
+import pytest
+
 # How to run this test:
 #
 # LLAMA_STACK_CONFIG="template-name" pytest -v tests/integration/datasetio
 
 
+@pytest.fixture
+def dataset_for_test(llama_stack_client):
+    dataset_id = "test_dataset"
+    register_dataset(llama_stack_client, dataset_id=dataset_id)
+    yield
+    # Teardown - this always runs, even if the test fails
+    try:
+        llama_stack_client.datasets.unregister(dataset_id)
+    except Exception as e:
+        print(f"Warning: Failed to unregister test_dataset: {e}")
+
+
 def data_url_from_file(file_path: str) -> str:
     if not os.path.exists(file_path):
         raise FileNotFoundError(f"File not found: {file_path}")
@@ -80,8 +94,7 @@ def test_register_unregister_dataset(llama_stack_client):
     assert len(response) == 0
 
 
-def test_get_rows_paginated(llama_stack_client):
-    register_dataset(llama_stack_client)
+def test_get_rows_paginated(llama_stack_client, dataset_for_test):
     response = llama_stack_client.datasetio.get_rows_paginated(
         dataset_id="test_dataset",
         rows_in_page=3,