Remove UTC from step as it is using local time (#2824)

# What this PR does
Reverts this PR - https://github.com/grafana/oncall/pull/2729
Fixes https://github.com/grafana/support-escalations/issues/7164

## Which issue(s) this PR fixes

## Checklist

- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)

engine/apps/alerts/models/escalation_policy.py

@@ -129,7 +129,7 @@ class EscalationPolicy(OrderedModel):
         STEP_TRIGGER_CUSTOM_WEBHOOK: ("Trigger webhook {{custom_webhook}}", "Trigger webhook"),
         STEP_NOTIFY_USERS_QUEUE: ("Round robin notification for {{users}}", "Notify users one by one (round-robin)"),
         STEP_NOTIFY_IF_TIME: (
-            "Continue escalation if current UTC time is in {{timerange}}",
+            "Continue escalation if current time is in {{timerange}}",
             "Continue escalation if current time is in range",
         ),
         STEP_NOTIFY_IF_NUM_ALERTS_IN_TIME_WINDOW: (