gh-143378: clean up duplicated shape check

Author: superboy-zjc

Modules/_io/bytesio.c

@@ -194,13 +194,6 @@ write_bytes_lock_held(bytesio *self, PyObject *b)
 {
     _Py_CRITICAL_SECTION_ASSERT_OBJECT_LOCKED(self);
 
-    if (check_closed(self)) {
-        return -1;
-    }
-    if (check_exports(self)) {
-        return -1;
-    }
-
     Py_buffer buf;
     Py_ssize_t len;
     if (PyObject_GetBuffer(b, &buf, PyBUF_CONTIG_RO) < 0) {