These don't need to be freezable

Signed-off-by: Matthew A Johnson <matjoh@microsoft.com>

Author: matajoh

Lib/test/test_freeze/test_hashlib.py

@@ -276,10 +276,6 @@ _blake2_blake2b_update(BLAKE2bObject *self, PyObject *data)
 {
     Py_buffer buf;
 
-    if(!Py_CHECKWRITE(self)){
-        return PyErr_WriteToImmutable(self);
-    }
-
     GET_BUFFER_VIEW_OR_ERROUT(data, &buf);
 
     if (self->lock == NULL && buf.len >= HASHLIB_GIL_MINSIZE)

Modules/_blake2/blake2b_impl.c

@@ -89,7 +89,6 @@ blake2_exec(PyObject *m)
         return -1;
     }
 
-
     PyObject *d = st->blake2b_type->tp_dict;
     ADD_INT(d, "SALT_SIZE", BLAKE2B_SALTBYTES);
     ADD_INT(d, "PERSON_SIZE", BLAKE2B_PERSONALBYTES);
@@ -112,23 +111,6 @@ blake2_exec(PyObject *m)
         return -1;
     }
 
-    PyObject *register_freezable = _PyImport_GetModuleAttrString("immutable", "register_freezable");
-    if(register_freezable != NULL){
-        PyObject *result = PyObject_CallFunctionObjArgs(register_freezable, st->blake2b_type, NULL);
-        if(result == NULL){
-            Py_DECREF(register_freezable);
-            return -1;
-        }
-
-        result = PyObject_CallFunctionObjArgs(register_freezable, st->blake2s_type, NULL);
-        if(result == NULL){
-            Py_DECREF(register_freezable);
-            return -1;
-        }
-
-        Py_DECREF(register_freezable);
-    }
-
     d = st->blake2s_type->tp_dict;
     ADD_INT(d, "SALT_SIZE", BLAKE2S_SALTBYTES);
     ADD_INT(d, "PERSON_SIZE", BLAKE2S_PERSONALBYTES);

Modules/_blake2/blake2module.c

@@ -276,10 +276,6 @@ _blake2_blake2s_update(BLAKE2sObject *self, PyObject *data)
 {
     Py_buffer buf;
 
-    if(!Py_CHECKWRITE(self)){
-        return PyErr_WriteToImmutable(self);
-    }
-
     GET_BUFFER_VIEW_OR_ERROUT(data, &buf);
 
     if (self->lock == NULL && buf.len >= HASHLIB_GIL_MINSIZE)