Remove go-metrics from package.json: it does not seem used here or anywhere.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>

package.json

@@ -83,11 +83,6 @@
       "name": "go-multiaddr",
       "version": "1.2.6"
     },
-    {
-      "hash": "QmeYJHEk8UjVVZ4XCRTZe6dFQrb8pGWD81LYCgeLp8CvMB",
-      "name": "go-metrics",
-      "version": "0.0.0"
-    },
     {
       "hash": "QmYvsG72GsfLgUeSojXArjnU6L4Wmwk7wuAxtNLuyXcc1T",
       "name": "randbo",