feat(v8): Remove deprecated Replay, Feedback, ReplayCanvas exports

[AbhiPrasad]

On the road to deleting Sentry.Integrations exports - we remove all exports for Sentry.Replay, Sentry.Feedback, and Sentry.ReplayCanvas.

ref #8844

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay, Feedback) - Webpack (gzipped)	77.38 KB (+0.02% 🔺)
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	68.58 KB (+0.01% 🔺)
@sentry/browser (incl. Tracing, Replay with Canvas) - Webpack (gzipped)	72.5 KB (0%)
@sentry/browser (incl. Tracing, Replay) - Webpack with treeshaking flags (gzipped)	62.14 KB (+0.01% 🔺)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	32.84 KB (0%)
@sentry/browser (incl. browserTracingIntegration) - Webpack (gzipped)	32.84 KB (0%)
@sentry/browser (incl. Feedback) - Webpack (gzipped)	31.34 KB (+0.02% 🔺)
@sentry/browser (incl. sendFeedback) - Webpack (gzipped)	31.35 KB (0%)
@sentry/browser - Webpack (gzipped)	22.56 KB (0%)
@sentry/browser (incl. Tracing, Replay, Feedback) - ES6 CDN Bundle (gzipped)	75.43 KB (-0.03% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	67.05 KB (-0.08% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	32.91 KB (-0.23% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped)	23.97 KB (-0.39% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	210.54 KB (-0.04% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	99.34 KB (-0.15% 🔽)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	71.65 KB (-0.2% 🔽)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	36.05 KB (-0.19% 🔽)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	68.87 KB (+0.01% 🔺)
@sentry/react - Webpack (gzipped)	22.59 KB (0%)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	85.3 KB (+0.02% 🔺)
@sentry/nextjs Client - Webpack (gzipped)	49.7 KB (0%)
@sentry-internal/feedback - Webpack (gzipped)	17.41 KB (+0.04% 🔺)

[AbhiPrasad]

This is now ready for another review!