fix deps [ci skip]

Author: stephenplusplus

packages/logging/package.json

@@ -62,11 +62,10 @@
     "google-gax": "^0.12.2",
     "google-proto-files": "^0.10.0",
     "is": "^3.0.1",
-    "is-circular": "^1.0.1",
     "pumpify": "^1.3.5",
     "stream-events": "^1.0.1",
     "string-format-obj": "^1.0.0",
-    "through": "^2.3.8"
+    "through2": "^2.0.3"
   },
   "devDependencies": {
     "@google-cloud/bigquery": "*",