mysqlcluster: remove error role policy rule (#603)

Author: acekingke

mysqlcluster/syncer/role.go

@@ -51,11 +51,6 @@ func NewRoleSyncer(cli client.Client, c *mysqlcluster.MysqlCluster) syncer.Inter
 				APIGroups: []string{"batch"},
 				Resources: []string{"jobs"},
 			},
-			{
-				Verbs:     []string{"create"},
-				APIGroups: []string{""},
-				Resources: []string{"pods/exec"},
-			},
 		}
 		return nil
 	})