Remove finalize from compatibility

jedi/_compatibility.py

@@ -514,55 +514,3 @@ def which(cmd, mode=os.F_OK | os.X_OK, path=None):
                 if _access_check(name, mode):
                     return name
     return None
-
-
-if not is_py3:
-    # Simplified backport of Python 3 weakref.finalize:
-    # https://github.com/python/cpython/blob/ded4737989316653469763230036b04513cb62b3/Lib/weakref.py#L502-L662
-    class finalize(object):
-        """Class for finalization of weakrefable objects.
-
-        finalize(obj, func, *args, **kwargs) returns a callable finalizer
-        object which will be called when obj is garbage collected. The
-        first time the finalizer is called it evaluates func(*arg, **kwargs)
-        and returns the result. After this the finalizer is dead, and
-        calling it just returns None.
-
-        When the program exits any remaining finalizers will be run.
-        """
-
-        # Finalizer objects don't have any state of their own.
-        # This ensures that they cannot be part of a ref-cycle.
-        __slots__ = ()
-        _registry = {}
-
-        def __init__(self, obj, func, *args, **kwargs):
-            info = functools.partial(func, *args, **kwargs)
-            info.weakref = weakref.ref(obj, self)
-            self._registry[self] = info
-
-        # To me it's an absolute mystery why in Python 2 we need _=None. It
-        # makes really no sense since it's never really called. Then again it
-        # might be called by Python 2.7 itself, but weakref.finalize is not
-        # documented in Python 2 and therefore shouldn't be randomly called.
-        # We never call this stuff with a parameter and therefore this
-        # parameter should not be needed. But it is. ~dave
-        def __call__(self, _=None):
-            """Return func(*args, **kwargs) if alive."""
-            info = self._registry.pop(self, None)
-            if info:
-                return info()
-
-        @classmethod
-        def _exitfunc(cls):
-            if not cls._registry:
-                return
-            for finalizer in list(cls._registry):
-                try:
-                    finalizer()
-                except Exception:
-                    sys.excepthook(*sys.exc_info())
-                assert finalizer not in cls._registry
-
-    atexit.register(finalize._exitfunc)
-    weakref.finalize = finalize