Removing deprecated items from config template (#2138)

newrelic-agent/src/main/resources/newrelic.yml

@@ -542,17 +542,6 @@ common: &default_settings
         ssrf: false
         rxss: false
 
-    # Deprecated!!! Instead, please use iast_detection_category to disable vulnerabilities category by IAST,
-    # These are the category of security events that can be detected. Set to false to disable detection of
-    # individual event types. Default is true for each event type.
-    detection:
-      rci:
-        enabled: true
-      rxss:
-        enabled: true
-      deserialization:
-        enabled: true
-
   # Slow transaction detection will report an event to New Relic ("SlowTransaction") whenever a Transaction's
   # time exceeds the threshold value (in ms). A transaction will only be reported once and by default, only
   # transactions that are in-process during a harvest cycle will be checked. Only the slowest single transaction