[Misc] Cleanup useless print and logger (#5220)

1. Remove useless print
2. use vLLM logger
3. change useless INFO to DEBUG level

- vLLM version: release/v0.13.0
- vLLM main:
ad32e3e19c

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

vllm_ascend/utils.py

@@ -1007,7 +1007,6 @@ def get_flashcomm2_config_and_validate(ascend_config, vllm_config):
 
     if not flashcomm2_enable():
         flashcomm2_oproj_shared = False
-        logger.info("FLASHCOMM2 not enable.")
         return flashcomm2_oproj_tp_size, flashcomm2_oproj_shared
 
     logger.info(