[FLINK-22740] Drop legacy planner from docs

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.14.0
• Component/s: Documentation, Table SQL / Legacy Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 21/May/21 08:09
• Updated: 28/May/21 11:10
• Resolved: 26/May/21 10:58

Description

Remove all references to legacy planner from docs.

Issue Links

• links to: GitHub Pull Request #15985