Revert "Added descriptor for backend vars (#2618)" (#2682)

This reverts commit f9d219407fa30558bf4eba9d39664efc46eba0b9.

reflex/state.py

@@ -388,9 +388,6 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
 
         cls._init_var_dependency_dicts()
 
-        for name in cls.new_backend_vars:
-            setattr(cls, name, PrivateVarDescriptor())
-
     @staticmethod
     def _copy_fn(fn: Callable) -> Callable:
         """Copy a function. Used to copy ComputedVars and EventHandlers from mixins.
@@ -2435,20 +2432,3 @@ def code_uses_state_contexts(javascript_code: str) -> bool:
         True if the code attempts to access a member of StateContexts.
     """
     return bool("useContext(StateContexts" in javascript_code)
-
-
-class PrivateVarDescriptor:
-    """A descriptor to raise error in case private vars is accessed on thr frontend."""
-
-    def __get__(self, *args, **kwargs):
-        """Raise error on get value.
-
-
-        Args:
-            *args: The args to pass to the function.
-            **kwargs: The kwargs to pass to the function.
-
-        Raises:
-            TypeError: if a background variable is used in frontend.
-        """
-        raise TypeError("Backend Vars cannot be accessed on the frontend.")