Delete AssetMetrics file and AssetMetricsCache job

There is no `Assets` namespace in AWS metrics. Also, there is no code in the repo that puts any metrics to this namespace.

Co-authored-by: Marjan Kalanaki <[email protected]>

Author: ioannakok

admin/app/model/AdminLifecycle.scala

@@ -8,7 +8,7 @@ import conf.switches.Switches._
 import _root_.jobs._
 import play.api.inject.ApplicationLifecycle
 import services.EmailService
-import tools.{AssetMetricsCache, CloudWatch, LoadBalancer}
+import tools.{CloudWatch, LoadBalancer}
 
 import scala.concurrent.duration._
 import scala.concurrent.{ExecutionContext, Future}
@@ -84,11 +84,6 @@ class AdminLifecycle(
       log.info("Starting ExpiringSwitchesAfternoonEmailJob")
       ExpiringSwitchesEmailJob(emailService).runReminder()
     }
-
-    jobs.scheduleEveryNMinutes("AssetMetricsCache", 60 * 6) {
-      AssetMetricsCache.run()
-    }
-
   }
 
   private def descheduleJobs(): Unit = {
@@ -111,7 +106,6 @@ class AdminLifecycle(
 
     pekkoAsync.after1s {
       rebuildIndexJob.run()
-      AssetMetricsCache.run()
       LoadBalancer.refresh()
     }
   }