[Refactor] refactor patch module (#3555)

### What this PR does / why we need it?
we notice that `patch_main` is never used. Usually the patch is for all
version. And if it's for specified version, we can use `vllm_version_is`
instead. So let's remove the useless sub folder in patch module to make
it clear.


- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

vllm_ascend/patch/worker/__init__.py

@@ -15,5 +15,15 @@
 # limitations under the License.
 #
 
-from vllm_ascend.patch.worker import patch_common  # noqa: F401
-from vllm_ascend.patch.worker import patch_main  # noqa: F401
+from vllm.triton_utils import HAS_TRITON
+
+if HAS_TRITON:
+    import vllm_ascend.patch.worker.patch_triton
+
+# isort: off
+import vllm_ascend.patch.worker.patch_distributed  # noqa
+import vllm_ascend.patch.worker.patch_logits  # noqa
+import vllm_ascend.patch.worker.patch_roberta  # noqa
+import vllm_ascend.patch.worker.patch_weight_loader  # noqa
+import vllm_ascend.patch.worker.patch_multimodal_merge  # noqa
+import vllm_ascend.patch.worker.patch_minicpm  # noqa