[BugFix][Platform]: Add Temp Option for Disable SP (#14936)

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

### Does this PR introduce _any_ user-facing change?
revert flashcomm option for temporary test
Will be remove once sp option add to upstream vllm 
### How was this patch tested?

- vLLM version: v0.27.1
- vLLM main:
https://github.com/vllm-project/vllm/commit/ba07e4a48fc951300d97eb506217dd530583dea3

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Signed-off-by: XuRongSheng <1843167357@qq.com>