chore: Clean up statsd monitoring configuration comments (#4334)

Removed commented instructions for enabling statsd monitoring.

Author: bobvandevijver

sentry/sentry.conf.example.py

@@ -530,8 +530,6 @@ def get_internal_network():
 # By default, Sentry uses dummy statsd monitoring backend that is a no-op.
 # If you have a statsd server, you can utilize that to monitor self-hosted
 # Sentry for "sentry"-related containers.
-#
-# To start, uncomment the following line and adjust the options as needed.
 
 SENTRY_STATSD_ADDR = env("SENTRY_STATSD_ADDR")
 if SENTRY_STATSD_ADDR: