[CI/Build][CPU] Fix CPU CI and remove all CPU V0 files (#20560)

Signed-off-by: jiang1.li <jiang1.li@intel.com>

tests/quantization/test_compressed_tensors.py

@@ -45,7 +45,8 @@ def use_v0_only(monkeypatch):
     """
     This module relies on V0 internals, so set VLLM_USE_V1=0.
     """
-    monkeypatch.setenv('VLLM_USE_V1', '0')
+    if not current_platform.is_cpu():
+        monkeypatch.setenv('VLLM_USE_V1', '0')
 
 
 @pytest.mark.parametrize(