ref(nextjs): Remove internal deprecated usage of deepReadDirSync

[lforst]

Removes usage of deepReadDirSync by removing the unused tests that call it.

Ref: #10100

[Lms24]

I guess the replacement for these tests are our e2e tests, correct?

[lforst]

I guess the replacement for these tests are our e2e tests, correct?

Originally we added these tests to ensure the Sentry CLI binary will not be included in AWS lambdas when deploying nextjs to vercel. We now have this test inside the CLI repository itself.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay, Feedback) - Webpack (gzipped)	76.98 KB (0%)
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	68.36 KB (0%)
@sentry/browser (incl. Tracing, Replay) - Webpack with treeshaking flags (gzipped)	61.99 KB (0%)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	32.38 KB (0%)
@sentry/browser (incl. Feedback) - Webpack (gzipped)	30.98 KB (0%)
@sentry/browser - Webpack (gzipped)	22.31 KB (0%)
@sentry/browser (incl. Tracing, Replay, Feedback) - ES6 CDN Bundle (gzipped)	74.61 KB (0%)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	66.26 KB (0%)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	32.07 KB (0%)
@sentry/browser - ES6 CDN Bundle (gzipped)	23.9 KB (0%)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	208.7 KB (0%)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	96.75 KB (0%)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	71.35 KB (0%)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	35.04 KB (0%)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	68.72 KB (0%)
@sentry/react - Webpack (gzipped)	22.35 KB (0%)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	85.37 KB (0%)
@sentry/nextjs Client - Webpack (gzipped)	49.5 KB (0%)
@sentry-internal/feedback - Webpack (gzipped)	17.01 KB (0%)