Remove vendored diagnostics_channel type definitions

Author: andreiborza

dev-packages/e2e-tests/test-applications/node-otel-without-tracing/package.json

@@ -11,7 +11,7 @@
     "test:assert": "pnpm test"
   },
   "dependencies": {
-    "@opentelemetry/sdk-trace-node": "2.1.0",
+    "@opentelemetry/sdk-trace-node": "2.2.0",
     "@opentelemetry/exporter-trace-otlp-http": "0.208.0",
     "@opentelemetry/instrumentation-undici": "0.13.2",
     "@opentelemetry/instrumentation-http": "0.208.0",