About BQ24171 EMI Noise and External SW Diode Remove

Hi

Now we meausre for EMI for BQ24171 PCB board for MP

But we have big isseus for EMI Noise our mesurement reslut , and we found this solution.

This solution is External Switching Diode removeed in design.

We cheked without  SW Diode  and  result  is  " Working is Ok ".

Because of  this device has High / Low side FET in internal.

【　Question 】

 1)  Can I remove  External Switching Diode with BQ24171 design on PCB??

         * We thinking use intertnal FET as SWitching Diode.

 2)  We worry abput something big sideffect and other problem.

      Cloud you tell me side effect and probrem without  External diode ??

      For instance 

              Power Loss ,  Device Heat .......... ?? 

Coud you give me comment ??

Thanks and Regard

Jasper