[7.11] [APM] Cleanup: Remove isValidCoordinateValue and getResponseTimeTooltipFormatter (#87836)

[sorenlouv]

Backports the following commits to 7.11:

• [APM] Cleanup: Remove isValidCoordinateValue and getResponseTimeTooltipFormatter ([APM] Cleanup: Remove isValidCoordinateValue and getResponseTimeTooltipFormatter #87836)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 3c39994

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
apm	1734	1733	-1

Async chunks

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

id	before	after	diff
apm	5.4MB	5.4MB	-909.0B
triggersActionsUi	1.5MB	1.5MB	-26.9KB
total			-27.8KB

Page load bundle

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

id	before	after	diff
triggersActionsUi	162.1KB	162.2KB	+102.0B

Unknown metric groups

async chunk count

id	before	after	diff
triggersActionsUi	31	32	+1

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