[bug] Clear invalid log and redundant logic.

[runkecheng]

Describe the problem

operator log when cluster updating:

1. version conflict

2022-06-01T15:44:09.378+0800    ERROR   controller-runtime.manager.controller.mysqlcluster.controllers.Status   failed to update cluster status {"reconciler group": "mysql.radondb.com", "reconciler kind": "MysqlCluster", "name": "sample", "namespace": "default", "error": "Operation cannot be fulfilled on mysqlclusters.mysql.radondb.com \"sample\": the object has been modified; please apply your changes to the latest version and try again"}
github.com/radondb/radondb-mysql-kubernetes/controllers.(*StatusReconciler).Reconcile
        /home/runkecheng/goCode/src/radondb-mysql-kubernetes/controllers/status_controller.go:104
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:298
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:253
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:214

2. cannot connect to the pod which is in terminating

2022-06-01T15:44:01.736+0800    ERROR   syncer.StatusSyncer     failed to get/update node raft status   {"node": "sample-mysql-2.sample-mysql.default", "error": "failed to get raft status, err: Get \"http://sample-mysql-2.sample-mysql.default:6601/v1/raft/status\": read tcp 172.28.134.66:43472->10.10.242.185:6601: read: connection reset by peer"}
github.com/radondb/radondb-mysql-kubernetes/mysqlcluster/syncer.(*StatusSyncer).Sync
        /home/runkecheng/goCode/src/radondb-mysql-kubernetes/mysqlcluster/syncer/status.go:157
github.com/presslabs/controller-util/syncer.Sync
        /home/runkecheng/go/pkg/mod/github.com/presslabs/[email protected]/syncer/syncer.go:82
github.com/radondb/radondb-mysql-kubernetes/controllers.(*StatusReconciler).Reconcile
        /home/runkecheng/goCode/src/radondb-mysql-kubernetes/controllers/status_controller.go:100
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:298
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:253
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
        /home/runkecheng/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:214

3. print the full object of the updating pod.

2022-06-01T15:43:36.864+0800    INFO    StatefulSetSyncer       updating pod    {"pod": "sample-mysql-2", "key": {"kind":"MysqlCluster","apiVersion":"mysql.radondb.com/v1alpha1","metadata":{"name":"sample","namespace":"default","selfLink":"/apis/mysql.radondb.com/v1alpha1/namespaces/default/mysqlclusters/sample","uid":"3eaad328-7e90-4ef7-8a1c-e5287a536467","resourceVersion":"42525257","generation":44,"creationTimestamp":"2022-05-20T06:18:56Z","annotations":{"kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"mysql.radondb.com/v1alpha1\",\"kind\":\"MysqlCluster\",\"metadata\":{\"annotations\":{},\"name\":\"sample\",\"namespace\":\"default\"},\"spec\":
......

To Reproduce

Expected behavior

Environment:

• RadonDB MySQL version:

[runkecheng]

use patch() to update status:
https://github.com/mysql/mysql-operator/blob/trunk/mysqloperator/controller/innodbcluster/cluster_api.py#L543