[CI][Misc] modify ds3.2+dcp ci (#7841)

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

Due to the current dcp solution of allgathering the KV cache, the
performance deteriorates significantly, and the CI may get stuck. This
PR temporarily removes the performance and accuracy benchmarks for
DeepSeek-V3.2-W8A8-cp to prevent CI hangs until optimization is
complete.

pcik-from:https://github.com/vllm-project/vllm-ascend/pull/7842

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

No

### How was this patch tested?

Verified that the configuration file remains valid and that the CI no
longer attempts to run the problematic benchmarks.

pick-from: https://github.com/vllm-project/vllm-ascend/pull/7842

---------

Signed-off-by: weiguihua2 <weiguihua2@huawei.com>

.github/workflows/schedule_nightly_test_a3.yaml

@@ -104,9 +104,6 @@ jobs:
           - name: multi-node-qwenw8a8-2node-longseq
             config_file_path: Qwen3-235B-W8A8-longseq.yaml
             size: 2
-          - name: multi-node-deepseek-V3_2-W8A8-cp
-            config_file_path: DeepSeek-V3_2-W8A8-cp.yaml
-            size: 2
           - name: multi-node-qwen-disagg-pd
             config_file_path: Qwen3-235B-disagg-pd.yaml
             size: 2