Removed is_pyrona_program builtin

Author: TobiasWrigstad

Python/bltinmodule.c

@@ -2815,25 +2815,6 @@ builtin_enableinvariant_impl(PyObject *module)
     return Py_EnableInvariant();
 }
 
-/*[clinic input]
-is_pyrona_program as builtin_is_pyrona_program
-
-Returns True if the program has used regions or cowns.
-[clinic start generated code]*/
-
-static PyObject *
-builtin_is_pyrona_program_impl(PyObject *module)
-/*[clinic end generated code: output=2b6729469da00221 input=d36655a3dc34a881]*/
-{
-    // TODO: This is an abuse of notions. We need to revisit
-    // the definition of when a program is a Pyrona program
-    // at some later point. The reason for having the definition
-    // conflated with the invariant being enabled is to only
-    // perform Pyrona checks (see threading.py) when a program
-    // must adhere to these checks for correctness.
-    return Py_is_invariant_enabled() ? Py_True : Py_False;
-}
-
 typedef struct {
     PyObject_HEAD
     Py_ssize_t tuplesize;
@@ -3135,7 +3116,6 @@ static PyMethodDef builtin_methods[] = {
     BUILTIN_ISSUBCLASS_METHODDEF
     BUILTIN_ISIMMUTABLE_METHODDEF
     BUILTIN_MAKEIMMUTABLE_METHODDEF
-    BUILTIN_IS_PYRONA_PROGRAM_METHODDEF
     BUILTIN_INVARIANTSRCFAILURE_METHODDEF
     BUILTIN_INVARIANTTGTFAILURE_METHODDEF
     BUILTIN_ITER_METHODDEF