removes _headers parameter from route handler and updates comment for aggs script

Author: dhurley14

x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/signals/open_close_signals_route.ts

@@ -24,7 +24,7 @@ export const setSignalsStatusRouteDef = (server: ServerFacade): Hapi.ServerRoute
         payload: setSignalsStatusSchema,
       },
     },
-    async handler(request: SignalsStatusRequest, _headers) {
+    async handler(request: SignalsStatusRequest) {
       const { signal_ids: signalIds, query, status } = request.payload;
       const index = getIndex(request, server);
       const { callWithRequest } = server.plugins.elasticsearch.getCluster('data');

x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/signals/query_signals_route.ts

@@ -24,7 +24,7 @@ export const querySignalsRouteDef = (server: ServerFacade): Hapi.ServerRoute =>
         payload: querySignalsSchema,
       },
     },
-    async handler(request: SignalsQueryRequest, _headers) {
+    async handler(request: SignalsQueryRequest) {
       const { query, aggs } = request.payload;
       const body = { query, aggs };
       const index = getIndex(request, server);

x-pack/legacy/plugins/siem/server/lib/detection_engine/scripts/signals/aggs_signals.sh

@@ -9,7 +9,7 @@
 set -e
 ./check_env_variables.sh
 
-# Example: ./signals/query_signals.sh
+# Example: ./signals/aggs_signal.sh
   curl -s -k \
   -H 'Content-Type: application/json' \
   -H 'kbn-xsrf: 123' \