[Core] Stop using outlines.caching.cache

This is broken, and the fix in outlines itself was to just stop using
it, so we should do the same.

references:

- dottxt-ai/outlines#1274
- dottxt-ai/outlines#1278

Signed-off-by: Russell Bryant <[email protected]>

vllm/model_executor/guided_decoding/outlines_logits_processors.py

@@ -23,7 +23,6 @@
 import torch
 from lark import Lark
 from outlines import grammars
-from outlines.caching import cache
 from outlines.fsm.guide import CFGGuide, Generate, Guide, RegexGuide, Write
 from outlines.fsm.json_schema import build_regex_from_schema
 from pydantic import BaseModel
@@ -95,7 +94,6 @@ def __call__(self, input_ids: List[int],
 class RegexLogitsProcessor(BaseLogitsProcessor):
 
     @classmethod
-    @cache()
     def _get_guide(cls, regex_string: str,
                    tokenizer: PreTrainedTokenizerBase) -> Guide:
         tokenizer = _adapt_tokenizer(tokenizer)
@@ -154,7 +152,6 @@ def __init__(self, schema: Union[str, Dict, BaseModel],
 class CFGLogitsProcessor(BaseLogitsProcessor):
 
     @classmethod
-    @cache()
     def _get_guide(cls, cfg: str, tokenizer: PreTrainedTokenizerBase) -> Guide:
         tokenizer = _adapt_tokenizer(tokenizer)
         return CFGGuide(cfg, tokenizer)