feat!: Remove metrics API from the JS SDK

[AbhiPrasad]

deprecation PR: #14157

resolves #14264

1. Removes metrics export and all it's usages
2. Removes all usages of _metrics_summary from the SDK
3. Removes metricsShim usage in the browser SDK CDN bundles
4. Removes all metrics related types from the SDK

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	23.12 KB	-0.41%	-96 B 🔽
@sentry/browser - with treeshaking flags	21.81 KB	-0.33%	-73 B 🔽
@sentry/browser (incl. Tracing)	35.62 KB	-0.33%	-119 B 🔽
@sentry/browser (incl. Tracing, Replay)	72.87 KB	-0.17%	-126 B 🔽
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	63.28 KB	-0.15%	-92 B 🔽
@sentry/browser (incl. Tracing, Replay with Canvas)	77.27 KB	-0.16%	-119 B 🔽
@sentry/browser (incl. Tracing, Replay, Feedback)	89.67 KB	-0.11%	-101 B 🔽
@sentry/browser (incl. Feedback)	39.87 KB	-0.23%	-94 B 🔽
@sentry/browser (incl. sendFeedback)	27.74 KB	-0.32%	-89 B 🔽
@sentry/browser (incl. FeedbackAsync)	32.5 KB	-0.29%	-96 B 🔽
@sentry/react	25.84 KB	-0.32%	-83 B 🔽
@sentry/react (incl. Tracing)	38.5 KB	-0.24%	-93 B 🔽
@sentry/vue	27.36 KB	-0.37%	-102 B 🔽
@sentry/vue (incl. Tracing)	37.5 KB	-0.28%	-107 B 🔽
@sentry/svelte	23.29 KB	-0.41%	-96 B 🔽
CDN Bundle	24.23 KB	-0.55%	-137 B 🔽
CDN Bundle (incl. Tracing)	35.78 KB	-4.4%	-1.64 KB 🔽
CDN Bundle (incl. Tracing, Replay)	70.87 KB	-2.28%	-1.65 KB 🔽
CDN Bundle (incl. Tracing, Replay, Feedback)	76.18 KB	-2.19%	-1.71 KB 🔽
CDN Bundle - uncompressed	71.14 KB	-0.58%	-424 B 🔽
CDN Bundle (incl. Tracing) - uncompressed	106.65 KB	-3.86%	-4.27 KB 🔽
CDN Bundle (incl. Tracing, Replay) - uncompressed	220.7 KB	-1.9%	-4.27 KB 🔽
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	233.91 KB	-1.8%	-4.28 KB 🔽
@sentry/nextjs (client)	38.75 KB	-0.26%	-100 B 🔽
@sentry/sveltekit (client)	36.17 KB	-0.27%	-100 B 🔽
@sentry/node	157.98 KB	-0.06%	-84 B 🔽
@sentry/node - without tracing	98.93 KB	-0.07%	-62 B 🔽
@sentry/aws-serverless	126.63 KB	-0.07%	-88 B 🔽

View base workflow run

[Lms24]

RIP :(