Remove BOOL_SPECIAL_METHOD

Author: cdce8p

ChangeLog

@@ -88,8 +88,14 @@ Release date: TBA
 
   Refs #1490
 
-* Remove ``astroid.const.PY38_PLUS`` and the previously deprecated ``astroid.const.BUILTINS``,
-  ``astroid.bases.BUILTINS``, as well as ``astroid.const.Load``, ``..Store``, and ``..Del``.
+* Remove unused and / or deprecated constants:
+  - ``astroid.bases.BOOL_SPECIAL_METHOD``
+  - ``astroid.bases.BUILTINS``
+  - ``astroid.const.BUILTINS``
+  - ``astroid.const.PY38_PLUS``
+  - ``astroid.const.Load``
+  - ``astroid.const.Store``
+  - ``astroid.const.Del``
 
   Refs #2141
 

astroid/bases.py

@@ -39,9 +39,6 @@
     from astroid.constraint import Constraint
 
 
-# TODO: check if needs special treatment
-BOOL_SPECIAL_METHOD = "__bool__"
-
 PROPERTIES = {"builtins.property", "abc.abstractproperty"}
 if PY310_PLUS:
     PROPERTIES.add("enum.property")
@@ -382,7 +379,7 @@ def bool_value(
         context.boundnode = self
 
         try:
-            result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)
+            result = _infer_method_result_truth(self, "__bool__", context)
         except (InferenceError, AttributeInferenceError):
             # Fallback to __len__.
             try: