[FLINK-34249] Remove DefaultSlotTracker related logic.

• Type: Technical Debt
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.19.0
• Component/s: Runtime / Task
• Labels: pull-request-available
• Assignee: RocMarshal
• Reporter: RocMarshal
• Created: 27/Jan/24 03:02
• Updated: 29/Jan/24 08:38
• Resolved: 29/Jan/24 02:34

Description

pre step: https://issues.apache.org/jira/browse/FLINK-34174

The main reason for initiating this ticket is 
https://issues.apache.org/jira/browse/FLINK-31449  &  https://issues.apache.org/jira/browse/FLINK-34174
(IIUC) as the current related logic is no longer being used.

Issue Links

• links to: GitHub Pull Request #24204