Turn off auto haptic feedback in the phone settings.
I don't want to turn it off as I like it when I press the buttons on the bottom of the S3.
What an odd feature, I'd have no idea why people would want their phone to vibrate while their phone rings.
 
	 
  
 
		 
 
		
 
 
		 
 
		

 
 
		
 
 
		