No, you can’t remove the application because it’s installed as a System App and without root there is nothing you can do. You will have to root your phone to delete the program, but you’ll receive a whole bunch of errors for the contacts since the application is tied to the contacts list. I recommend installing another contacts application through the Play Store and let that app function as it should. Eventually, disable it using Settings > Applications > All tab > PeopleStripe > Disable.
