perf: remove go-nanoid and rxgo

internal/crd/new.go

@@ -4,7 +4,6 @@ import (
 	"flink-kube-operator/internal/crd/v1alpha1"
 	"os"
 
-	"github.com/reactivex/rxgo/v2"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/dynamic"
 	"k8s.io/client-go/rest"
@@ -49,10 +48,10 @@ func New() *Crd {
 		runtimeClient: runtimeClient,
 	}
 
-	jobEventCh := make(chan rxgo.Item)
+	jobEventCh := make(chan FlinkJobCrdEvent)
 
 	// add finalizer to new resources
-	go crd.manageFinalizer(rxgo.FromChannel(jobEventCh))
+	go crd.manageFinalizer(jobEventCh)
 
 	// Watch for FlinkJob creation
 	crd.watchFlinkJobs(jobEventCh)