Revised version of attrs.py based on the feedback

Author: uko3211

mypy/plugins/attrs.py

@@ -1035,11 +1035,7 @@ def _get_attrs_init_type(typ: Instance) -> CallableType | None | AnyType:
 
     # case 1: normal FuncDef
     if isinstance(init_method, FuncDef) and isinstance(init_method.type, CallableType):
-        init_node = typ.type.get("__init__") or typ.type.get(ATTRS_INIT_NAME)
-        if init_node is None or not init_node.plugin_generated:
-            return None
-        else:
-            return init_method.type
+        return init_method.type
 
     # case 2: overloaded method
     if isinstance(init_method, OverloadedFuncDef) and isinstance(init_method.type, Overloaded):