fix: dont reset counters & durations after each scrape (#216)

prom counters are _up_ only. we should not be resetting them after each
scrape.

duration histograms are also designed to accumulate information over
time, they should not need to be reset either.

fixes: elastic-ipfs/elastic-ipfs#35

License: MIT

Signed-off-by: Oli Evans <oli@protocol.ai>

src/http-server.js

@@ -69,10 +69,7 @@ class HttpServer {
           })
           telemetry.export().then(result => {
             res.end(result)
-            telemetry.resetCounters()
-            telemetry.resetDurations()
-          }
-          )
+          })
           break
         }
         default: