Update README.md

[TeoSlayer]

Removed online nodes and requests badges from README.

Pull Request

Summary

Changes

Test Plan

• go build ./cmd/... succeeds
• go vet ./... clean
• Relevant tests pass (go test -parallel 4 ./tests/ ./pkg/beacon/)
• Pre-commit hooks pass (pre-commit run --all-files)

Checklist

• New code includes the SPDX license header
• No secrets or credentials committed
• go.mod / go.sum changes are intentional
• Documentation updated if behavior changed
• Linked issue or context:

[TeoSlayer]

The only failing check is "Architecture gates", which is the known-flaky lock-graph stress harness (TestConcurrentDialEncryptDecrypt) — a rerun should clear it. Otherwise this is a clean README change.