Revert "Issue #2331609 by Pedro Lozano: Allow form alter of the full quiz_question page."

This reverts commit 7888b9ab5284cc107fa34548a6c401480d0c85fa.
Issue #2328657 by djdevin: Massive refactoring of Quiz question feedback system. Introduced new API for question feedback for more control. Test cases for coverage.
Add setResultId to QuizQuestionResponse class so that we can clone result answers. Remove \$quiz in quiz_end_scoring to make sure that we have the version of the quiz associated with the result.