That's the main camera process, not really a way to 'remove' it from your device without rooting. Have you installed any apps recently that have access to the camera? In the past that has been associated with a bug in Yahoo Messenger, but since that app is long dead, I doubt this is your case.
You can check the apps that have permission to use the camera in your phone Settings and see if any of those is the culprit (try turning access off for all or any app you suspect and see if that helps).