[Improvement]Delete the getSession in the Registry interface (#10633)

dolphinscheduler-registry/dolphinscheduler-registry-api/src/main/java/org/apache/dolphinscheduler/registry/api/Registry.java

@@ -43,6 +43,4 @@ public interface Registry extends Closeable {
     boolean acquireLock(String key);
 
     boolean releaseLock(String key);
-
-    Duration getSessionTimeout();
 }

dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-mysql/src/main/java/org/apache/dolphinscheduler/plugin/registry/mysql/MysqlRegistry.java

@@ -156,10 +156,6 @@ public class MysqlRegistry implements Registry {
         return true;
     }
 
-    @Override
-    public Duration getSessionTimeout() {
-        throw new UnsupportedOperationException("Not support session timeout at Mysql Registry");
-    }
 
     @Override
     public void close() {

dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-zookeeper/src/main/java/org/apache/dolphinscheduler/plugin/registry/zookeeper/ZookeeperRegistry.java

@@ -232,11 +232,6 @@ public final class ZookeeperRegistry implements Registry {
         return true;
     }
 
-    @Override
-    public Duration getSessionTimeout() {
-        return properties.getSessionTimeout();
-    }
-
     @Override
     public void close() {
         treeCacheMap.values().forEach(CloseableUtils::closeQuietly);

dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/registry/RegistryClient.java

@@ -310,8 +310,4 @@ public class RegistryClient {
             }
         }
     }
-
-    public Duration getSessionTimeout() {
-        return registry.getSessionTimeout();
-    }
 }