[Bugfix] Fix Go routine leak (#1149)

CHANGELOG.md

@@ -11,6 +11,7 @@
 - (Feature) Respect ToBeCleanedServers in Agency
 - (Improvement) Unify K8S Error Handling
 - (Feature) Remove stuck Pods
+- (Bugfix) Fix Go routine leak
 
 ## [1.2.19](https://github.com/arangodb/kube-arangodb/tree/1.2.19) (2022-10-05)
 - (Bugfix) Prevent changes when UID is wrong

pkg/util/timer/after.go

@@ -29,12 +29,6 @@ func After(duration time.Duration) <-chan time.Time {
 		defer close(r)
 
 		tc := time.NewTimer(duration)
-		defer func() {
-			// Cleanup channel
-			for range tc.C {
-
-			}
-		}()
 		defer tc.Stop()
 
 		r <- <-tc.C