[V0 Deprecation] Enable the remaining multimodal tests in V1 (#25307)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

tests/models/multimodal/generation/test_qwen2_vl.py

@@ -10,7 +10,6 @@ from PIL import Image
 
 from vllm.multimodal.image import rescale_image_size
 from vllm.multimodal.video import rescale_video_size, sample_frames_from_video
-from vllm.utils import set_default_torch_num_threads
 
 from ....conftest import (IMAGE_ASSETS, VIDEO_ASSETS, PromptImageInput,
                           PromptVideoInput, VllmRunner)
@@ -264,8 +263,7 @@ def run_embedding_input_test(
     processor = AutoProcessor.from_pretrained(model)
 
     # max_model_len should be greater than image_feature_size
-    with set_default_torch_num_threads(1):
-        vllm_model = vllm_runner(
+    with vllm_runner(
             model,
             runner="generate",
             max_model_len=4000,
@@ -277,9 +275,8 @@ def run_embedding_input_test(
             },
             tensor_parallel_size=tensor_parallel_size,
             distributed_executor_backend=distributed_executor_backend,
-        )
-
-    with vllm_model:
+            default_torch_num_threads=1,
+    ) as vllm_model:
         outputs_per_case_for_original_input = [
             vllm_model.generate_greedy_logprobs(prompts,
                                                 max_tokens,