refactor(tests): remove grpc import checks from test files for cleaner code

tests/rl/test_data_mixer.py

@@ -13,10 +13,6 @@
 # limitations under the License.
 """Tests for RL data mixing (DataMixer, OnlineOfflineMixer)."""
 
-import pytest
-
-pytest.importorskip("grpc")
-
 import torch
 
 from lerobot.rl.buffer import ReplayBuffer

tests/rl/test_queue.py

@@ -18,10 +18,6 @@ import threading
 import time
 from queue import Queue
 
-import pytest
-
-pytest.importorskip("grpc")
-
 from torch.multiprocessing import Queue as TorchMPQueue
 
 from lerobot.rl.queue import get_last_item_from_queue

tests/rl/test_sac_algorithm.py

@@ -16,9 +16,6 @@
 """Tests for the RL algorithm abstraction and SACAlgorithm implementation."""
 
 import pytest
-
-pytest.importorskip("grpc")
-
 import torch
 
 from lerobot.configs.types import FeatureType, PolicyFeature
@@ -31,7 +28,7 @@ from lerobot.utils.constants import ACTION, OBS_IMAGE, OBS_STATE
 from lerobot.utils.random_utils import set_seed
 
 # ---------------------------------------------------------------------------
-# Helpers (reuse patterns from tests/policies/test_sac_policy.py)
+# Helpers (reuse patterns from tests/policies/test_gaussian_actor_policy.py)
 # ---------------------------------------------------------------------------
 
 

tests/rl/test_trainer.py

@@ -14,10 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import pytest
-
-pytest.importorskip("grpc")
-
 import torch
 from torch import Tensor