[V0 Deprecation][TPU] Remove V1 flag check from tests (#22248)

Signed-off-by: NickLucche <nlucches@redhat.com>

tests/v1/tpu/test_mha_attn.py

@@ -12,17 +12,10 @@ import torch_xla
 import torch_xla.core
 import torch_xla.core.xla_model
 
-from vllm import envs
 from vllm.attention.layer import MultiHeadAttention
 from vllm.attention.selector import _cached_get_attn_backend
 from vllm.platforms import current_platform
 
-if not envs.VLLM_USE_V1:
-    pytest.skip(
-        "Skipping V1 tests. Rerun with `VLLM_USE_V1=1` to test.",
-        allow_module_level=True,
-    )
-
 
 @pytest.fixture(autouse=True)
 def clear_cache():

tests/v1/tpu/test_multimodal.py

@@ -4,19 +4,12 @@
 import openai
 import pytest
 
-from vllm import envs
 from vllm.multimodal.utils import encode_image_base64, fetch_image
 from vllm.platforms import current_platform
 
 from ...entrypoints.openai.test_vision import TEST_IMAGE_URLS
 from ...utils import RemoteOpenAIServer
 
-if not envs.VLLM_USE_V1:
-    pytest.skip(
-        "Skipping V1 tests. Rerun with `VLLM_USE_V1=1` to test.",
-        allow_module_level=True,
-    )
-
 
 @pytest.fixture(scope="session")
 def base64_encoded_image() -> dict[str, str]:

tests/v1/tpu/test_sampler.py

@@ -4,16 +4,10 @@ import random
 
 import pytest
 
-from vllm import LLM, envs
+from vllm import LLM
 from vllm.platforms import current_platform
 from vllm.sampling_params import SamplingParams
 
-if not envs.VLLM_USE_V1:
-    pytest.skip(
-        "Skipping V1 tests. Rerun with `VLLM_USE_V1=1` to test.",
-        allow_module_level=True,
-    )
-
 
 @pytest.mark.parametrize("model_name", ["Qwen/Qwen2.5-1.5B-Instruct"])
 @pytest.mark.skipif(not current_platform.is_tpu(),