[Misc] Drop patch_rope.py (#6291)

### What this PR does / why we need it?

Part of #5304.

We have align with vLLM's latest change for `RotaryEmbeddingBase`. Don't
need this patch anymore.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.14.1
- vLLM main:
dc917cceb8

Signed-off-by: gcanlin <canlinguosdu@gmail.com>

vllm_ascend/patch/worker/__init__.py

@@ -26,7 +26,6 @@ import vllm_ascend.patch.worker.patch_unquantized_gemm  # noqa
 import vllm_ascend.patch.worker.patch_bert  # noqa
 import vllm_ascend.patch.worker.patch_distributed  # noqa
 import vllm_ascend.patch.worker.patch_multimodal_merge  # noqa
-import vllm_ascend.patch.worker.patch_rope  # noqa
 import vllm_ascend.patch.worker.patch_qwen3_next  # noqa
 import vllm_ascend.patch.worker.patch_qwen3_next_mtp  # noqa
 import vllm_ascend.patch.worker.patch_rejection_sampler  # noqa

vllm_ascend/patch/worker/patch_rope.py

@@ -1,31 +0,0 @@
-#
-# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
-# This file is a part of the vllm-ascend project.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-import torch
-import torch.nn as nn
-from vllm.model_executor.layers.rotary_embedding.base import RotaryEmbeddingBase
-
-
-class AscendRotaryEmbeddingBase(nn.Module):
-    def get_cos_sin(self, seqlen: int) -> tuple[torch.Tensor, torch.Tensor]:
-        cos_sin = self.cos_sin_cache[:seqlen]
-        cos, sin = cos_sin.chunk(2, dim=-1)
-        return cos, sin
-
-
-# NOTE: These will be removed after vllm-ascend is aligned with vllm latest main.
-RotaryEmbeddingBase.get_cos_sin = AscendRotaryEmbeddingBase.get_cos_sin