[FLINK-15629] Remove LegacyScheduler class and the consequently unused codes after this removal

• Type: Sub-task
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.11.0
• Fix Version/s: 1.11.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Zhu Zhu
• Reporter: Zhu Zhu
• Created: 17/Jan/20 08:56
• Updated: 17/Jan/20 09:08

Description

This task is to remove the LegacyScheduler class and the consequently unused codes after this removal.
Note that the scheduling/failover logics in ExecutionGraph would be removed in a separate task.

Issue Links

• links to: GitHub Pull Request #10883