Remove extra RAFs

[drewdaemon]

Summary

As a stop-gap for adding the performance journey, we adding RAF calls to the renderers because Elastic charts was reporting the render prematurely. As of elastic/elastic-charts#2131, the bug in Elastic charts is fixed, so we should remove these.

[stratoula]

LGTM, code review only

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 4b6f11d

Failed CI Steps

• FTR Configs #28

Test Failures

• [job] [logs] FTR Configs #28 / Serverless Common UI - Management Index Templates "before all" hook for "renders the index templates tab"

Metrics [docs]

Async chunks

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

id	before	after	diff
expressionGauge	18.8KB	18.7KB	-38.0B
expressionHeatmap	27.2KB	27.2KB	-38.0B
expressionMetricVis	4.6KB	4.6KB	-38.0B
expressionPartitionVis	40.6KB	40.6KB	-36.0B
expressionTagcloud	23.0KB	23.0KB	-38.0B
expressionXY	131.1KB	131.1KB	-38.0B
total			-226.0B

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@elasticmachine merge upstream