[Worker][V1] Support sleep mode for v1 (#1084)

### What this PR does / why we need it?
 Support sleep mode for v1

Signed-off-by: wangli <wangli858794774@gmail.com>

tests/singlecard/test_camem.py

@@ -16,9 +16,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-import os
 
-import pytest
 import torch
 from vllm import LLM, SamplingParams
 from vllm.utils import GiB_bytes
@@ -26,9 +24,6 @@ from vllm.utils import GiB_bytes
 from tests.utils import fork_new_process_for_each_test
 from vllm_ascend.device_allocator.camem import CaMemAllocator
 
-if os.getenv("VLLM_USE_V1") == "1":
-    pytest.skip("Skip in vllm v1", allow_module_level=True)
-
 
 @fork_new_process_for_each_test
 def test_basic_camem():