fix：修复下载日志，出现非预期信息弹窗 (#840)

Author: TianWuwt

ui/src/pages/Cluster/Detail/Connection/index.tsx

@@ -80,14 +80,6 @@ const ClusterConnection: React.FC = () => {
                 terminalId={terminalId}
                 onClose={() => {
                   setTerminalId(undefined);
-                  if (terminalId) {
-                    message.info(
-                      intl.formatMessage({
-                        id: 'Dashboard.Cluster.Detail.CloseConnection',
-                        defaultMessage: '连接已关闭',
-                      }),
-                    );
-                  }
                 }}
               />
             ) : (

ui/src/pages/Tenant/Detail/Connection/index.tsx

@@ -66,14 +66,6 @@ const TenantConnection: React.FC = () => {
               terminalId={terminalId}
               onClose={() => {
                 setTerminalId(undefined);
-                if (terminalId) {
-                  message.info(
-                    intl.formatMessage({
-                      id: 'Dashboard.Cluster.Detail.CloseConnection',
-                      defaultMessage: '连接已关闭',
-                    }),
-                  );
-                }
               }}
             />
           ) : (