Remove legacy "walking model"

Description

The legacy walking model was developed solely for implementing LoadPlan. As LoadPlans have now been replaced with SQL AST approach, this walking model is no longer needed.

At the same time, clean-up the org.hibernate.sql package as much as possible

Environment

None

Assignee

Unassigned

Reporter

Steve Ebersole

Fix versions

Labels

None

backPortable

None

Suitable for new contributors

None

Requires Release Note

None

Pull Request

None

backportDecision

None

Priority

Major
Configure