[Core][Refactor] move parallel_utils into vllm/distributed (#3950)

[WIP][Core][Refactor] move vllm/model_executor/parallel_utils into vllm/distributed and vllm/device_communicators (#3950)

vllm/model_executor/models/gpt_bigcode.py

@@ -25,6 +25,7 @@ from torch import nn
 from transformers import GPTBigCodeConfig
 
 from vllm.attention import Attention, AttentionMetadata
+from vllm.distributed import get_tensor_model_parallel_world_size
 from vllm.model_executor.layers.activation import get_act_fn
 from vllm.model_executor.layers.linear import (ColumnParallelLinear,
                                                LinearMethodBase,
@@ -34,8 +35,6 @@ from vllm.model_executor.layers.logits_processor import LogitsProcessor
 from vllm.model_executor.layers.sampler import Sampler
 from vllm.model_executor.layers.vocab_parallel_embedding import (
     VocabParallelEmbedding)
-from vllm.model_executor.parallel_utils.parallel_state import (
-    get_tensor_model_parallel_world_size)
 from vllm.model_executor.sampling_metadata import SamplingMetadata
 from vllm.model_executor.weight_utils import (default_weight_loader,
                                               hf_model_weights_iterator)