chore: remove erroneous dependency on istio (#21486) (#21499)

Use same logging functions as the rest of the points code.

(cherry picked from commit 5ef6b83)

Closes #21498

CHANGELOG.md

@@ -10,6 +10,7 @@
 1. [21479](https://github.com/influxdata/influxdb/pull/21477): Accept `--input` instead of a positional arg in `influx restore`.
 1. [21479](https://github.com/influxdata/influxdb/pull/21477): Print error instead of panicking when `influx restore` fails to find backup manifests.
 1. [21485](https://github.com/influxdata/influxdb/pull/21485): Set last-modified time of empty shard directory to the directory's mod time instead of Unix epoch.
+1. [21499](https://github.com/influxdata/influxdb/pull/21499): Chore: remove erroneous dependency on istio
 
 ## v2.0.6 [2021-04-29]
 ----------------------

go.mod

@@ -112,7 +112,6 @@ require (
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71
 	honnef.co/go/tools v0.0.1-2020.1.4
-	istio.io/pkg v0.0.0-20200606170016-70c5172b9cdf
 	labix.org/v2/mgo v0.0.0-20140701140051-000000000287 // indirect
 	launchpad.net/gocheck v0.0.0-20140225173054-000000000087 // indirect
 )