Cleaned up Observability plugin from timelines unused dependencies on TGrid usage

[YulNaumenko]

Due to the migrating Observability to use the new Alerts table

kibana/x-pack/plugins/triggers_actions_ui/public/plugin.ts

Line 110 in f92c76c

getAlertsStateTable: (props: AlertsTableStateProps) => ReactElement<AlertsTableStateProps>;

instead of TGrid, we are able now to clean timelines plugin from TGrid 'standalone' and 'embedded' components which was introduced during RAC initiative.

Current PR is a cleaning up of the code in Observability plugin which has references to TGrid component usage usage.
Follow up issue for cleaning Security Solution.

[elasticmachine]

Pinging @elastic/actionable-observability (Team: Actionable Observability)

[YulNaumenko]

@elasticmachine merge upstream

[kqualters-elastic]

@YulNaumenko I think you should just delete the failing tests, this whole directory https://github.com/elastic/kibana/tree/main/x-pack/test/plugin_functional/plugins/timelines_test and this https://github.com/elastic/kibana/tree/main/x-pack/test/plugin_functional/test_suites/timelines and all references to these files. Never did anything more than verify that the standalone version didn't explode on render.

[kqualters-elastic]

LGTM 👍 once ci is happy from the now irrelevant smoke tests

[benakansara]

Actionable Observability changes LGTM.

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 54d273c

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
observability	478	475	-3
timelines	258	255	-3
total			-6

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
observability	522.0KB	520.7KB	-1.4KB
securitySolution	10.0MB	10.0MB	-30.0B
timelines	26.3KB	74.0KB	+47.7KB
total			+46.3KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
observability	67.6KB	67.5KB	-139.0B
timelines	222.2KB	172.8KB	-49.5KB
total			-49.6KB

Unknown metric groups

async chunk count

id	before	after	diff
timelines	7	10	+3

ESLint disabled line counts

id	before	after	diff
timelines	34	32	-2

References to deprecated APIs

id	before	after	diff
timelines	20	10	-10

Total ESLint disabled count

id	before	after	diff
timelines	34	32	-2

History

• 💔 Build #81599 failed 775290e
• 💔 Build #81562 failed 0c877a8
• 💔 Build #81540 failed e3484e8
• 💔 Build #81520 failed 7541979
• 💔 Build #81513 failed e206ebc
• 💔 Build #81253 failed 9f51037

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @YulNaumenko