[GR-65785] Remove __dict__ from typing.Generic

PullRequest: graalpython/3837

Author: otethal

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java

@@ -1428,7 +1428,7 @@ def add_two(x: float, y: float) -> float:
 
                                     See PEP 695 for more information.
                                     """)),
-    PGeneric(J_GENERIC, PythonObject, newBuilder().publishInModule(J__TYPING).moduleName(J_TYPING).basetype().addDict());
+    PGeneric(J_GENERIC, PythonObject, newBuilder().publishInModule(J__TYPING).moduleName(J_TYPING).basetype());
 
     private static TypeBuilder newBuilder() {
         return new TypeBuilder();