build(deno): Treeshake deno package

[lforst]

I noticed the deno build output contained some odd pieces of code (the vendored session replay compression) so I figured we are not properly tree shaking.

This PR increases level of tree-shaking we do which will decrease the bundle size to the bare minimum.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	84.26 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	31.43 KB (-0.01% 🔽)
@sentry/browser - Webpack (gzipped)	22.01 KB (-0.02% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	78.79 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	28.6 KB (-0.02% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped)	21.02 KB (-0.02% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	254.51 KB (0%)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	86.76 KB (0%)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	62.45 KB (0%)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	31.48 KB (-0.02% 🔽)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	84.29 KB (-0.01% 🔽)
@sentry/react - Webpack (gzipped)	22.06 KB (-0.02% 🔽)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	102.2 KB (-0.01% 🔽)
@sentry/nextjs Client - Webpack (gzipped)	50.96 KB (-0.01% 🔽)