remove old cache wrapper (#32653)

* remove wrapper that is functools.cache

* format

common/git.py

@@ -1,5 +1,5 @@
+from functools import cache
 import subprocess
-from openpilot.common.utils import cache
 from openpilot.common.run import run_cmd, run_cmd_default
 
 

common/utils.py

@@ -1,11 +1,3 @@
-from collections.abc import Callable
-from functools import lru_cache
-from typing import TypeVar
-
-
-_RT = TypeVar("_RT")
-
-
 class Freezable:
   _frozen: bool = False
 
@@ -17,7 +9,3 @@ class Freezable:
     if self._frozen:
       raise Exception("cannot modify frozen object")
     super().__setattr__(*args, **kwargs)
-
-
-def cache(user_function: Callable[..., _RT], /) -> Callable[..., _RT]:
-  return lru_cache(maxsize=None)(user_function)