Drop telemetry CI (microsoft#20393)

Downloading the ripgrep dependency is a bit flaky.

Part of microsoft#20390

Author: brettcannon

.github/workflows/telemetry.yml

@@ -1871,7 +1871,6 @@
         "@types/xml2js": "^0.4.2",
         "@typescript-eslint/eslint-plugin": "^3.7.0",
         "@typescript-eslint/parser": "^3.7.0",
-        "@vscode/telemetry-extractor": ">=1.9.8",
         "@vscode/test-electron": "^2.1.3",
         "chai": "^4.1.2",
         "chai-arrays": "^2.0.0",