salt: remove "do" from logging command

Author: crobert-1

deployments/salt/splunk-otel-collector/fluentd.sls

@@ -1,6 +1,6 @@
 {% set message = 'Fluentd support has been deprecated and will be removed in a future release. Please refer to documentation on how to replace usage: https://github.com/signalfx/splunk-otel-collector/blob/main/docs/deprecations/fluentd-support.md' %}
 Log deprecation message about Fluentd:
-  {%- do salt["log.warning"](message) -%}
+  {%- salt["log.warning"](message) -%}
 
 {% set splunk_fluentd_config = salt['pillar.get']('splunk-otel-collector:splunk_fluentd_config', '/etc/otel/collector/fluentd/fluent.conf') %}