Remove mmccorquodale from DAG owners (#4492)

dags/bqetl_search_dashboard.py

@@ -81,7 +81,6 @@ with DAG(
         email=[
             "akomar@mozilla.com",
             "cmorales@mozilla.com",
-            "mmccorquodale@mozilla.com",
             "telemetry-alerts@mozilla.com",
             "xluo@mozilla.com",
         ],

sql/moz-fx-data-shared-prod/search_derived/mobile_search_aggregates_for_searchreport_v1/metadata.yaml

@@ -10,7 +10,6 @@ labels:
   schedule: daily
 owners:
 - cmorales@mozilla.com
-- mmccorquodale@mozilla.com
 - xluo@mozilla.com
 scheduling:
   dag_name: bqetl_search_dashboard