[indexPatterns] Remove time-based interval support

[spalger]

In Kibana 4.3.0 we deprecated creating index patterns with time based intervals, and we are finally going to remove the functionality. I propose the process look something like this:

• [indexPatterns] remove support for time patterns #12158 - prevent creating new index patterns based on time patterns
• Index pattern UX: Implement CRUD flow #10442 provide better tooling to move away from these patterns
  • index pattern editor
  • section of the editor that suggests the wildcard pattern and shows the indices that it would match
• be more aggressive about the deprecation and regularly warn users with notifications in the UI
  • [indexPatterns] remove support for time patterns #12158 - put a big warning on the index pattern view
  • Enable warning about unsupported index patterns by default #12322 each time an index pattern using a time pattern is loaded display a warning toast
    • allow disabling these warnings in ui settings
    • only show the warning once per index pattern, and once per session

Why not just pull off the bandaid and completely removing support for time patterns?

• we can't identify any urgent need for removal
• moving away from time patterns immediately requires deleting the index pattern, creating a new one, and reassociating all saved objects
• adding the ability to modify index patterns is mostly blocked by switching to uuids
  • we could update them today and simultaneously update all linked saved objects, but that's error prone and not ideal since uuids are so close.
• converting a time pattern to a wildcard could require designing aliases or reindexing data if your indexes are not selectable with a wildcard alone
  • [logs-]YYYY.MM[-app-one] would convert to logs-*-app-one, but that also matches logs-not-app-one

[spalger]

/cc @epixa @tylersmalley @jbudz @archanid

[cjcenizal]

• allow disabling these warnings in ui settings
• only show the warning once per index pattern, and once per session

I'm not sure I understand the intention here. What would be the problem if we persistently nagged users about using time-interval index patterns? They're doing something "wrong", so I think it makes sense to keep this warning surfaced and force them to deliberately ignore it each time they see it.

[spalger]

@cjcenizal Sorry, missed your comment. The idea was that the person seeing the warning may not be the person who can fix it. The warning is now disabled until there is a simpler method for editing, since even the warning was too suggestive that there was some reasonable method to fix the issue.

[tylersmalley]

We should also remove this from the docs: https://www.elastic.co/guide/en/kibana/current/index-patterns.html

[spalger]

Done in 5ca3001 @tylersmalley

[spalger]

@elastic/kibana-management is this still incomplete?