fix spider/bugfix.delete_with_float_column_mysql --ps

as always, multi-commands don't work in --ps

storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column.inc

@@ -21,8 +21,10 @@ USE auto_test_remote;
 
 --connection child2_1
 --disable_query_log
+--disable_ps_protocol
 echo CHILD2_1_CREATE_TABLES;
 eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
 --enable_query_log
 TRUNCATE TABLE mysql.general_log;