Remove the @Deprecated tags from the {Delete|Insert|Update}_Default
operators and the API calls. This was a failed attempt to see if these
operators could be removed, but there is still too much using them.
Create a separate card for doing so.
Make `ExecutionBase.CURSOR_LIFECYCLE_ENABLED` a public variable to allow
the cursor implementation in `ExecutableModifyOperatorStatement` to
verify `next()` as well as all the other ones.