Get Rid Of /*+ APPEND */ Hint While INSERT /*+ APPEND */ INTO

Hi Everyone,

I am using;

SAP Data Services 4.2 on Patch 3 

Red Hat Enterprise Linux Server release 6.5 (Santiago)

Database is Oracle 11.2.0.4.1

Here is the question ;

Every time I can get  /*+ APPEND */ hit on optimized sql tab. "INSERT /*+ APPEND */ INTO"

And it use too much space on database. Table size is getting bigger ,

Is there any way to get rid of APPEND hint adn optimizer use "INSERT INTO"

Best Regards,