metrics/influxdb: use smaller dependency and reuse code between v1 an…

…d v2 reporters (#26963)

This change switches to use the smaller influxdata/influxdb1-client package instead of depending on the whole infuxdb package. The new smaller client is very similar to the influxdb-v2 client, which made it possible to refactor the two reporters to reuse code a lot more.

go.mod

@@ -38,8 +38,8 @@ require (
 	github.com/holiman/bloomfilter/v2 v2.0.3
 	github.com/holiman/uint256 v1.2.2-0.20230321075855-87b91420868c
 	github.com/huin/goupnp v1.0.3
-	github.com/influxdata/influxdb v1.8.3
 	github.com/influxdata/influxdb-client-go/v2 v2.4.0
+	github.com/influxdata/influxdb1-client v0.0.0-20220302092344-a9ab5670611c
 	github.com/jackpal/go-nat-pmp v1.0.2
 	github.com/jedisct1/go-minisign v0.0.0-20190909160543-45766022959e
 	github.com/julienschmidt/httprouter v1.3.0