One of the new feature that arrived with Android 4.4 KitKat was HP printing service which allowed the user to directly print from their. Unfortunately printing hardware supported was only of HP. Because of this HP Printing app on Google Play store has mostly got negative reviews (currently average of two and a half star). Most of the user had complain of not having specific HP printer and HP printing service app being installed on their device with 4.4 update without their consent.
It is not possible to completely remove the printing service but it is possible to disable the service. To disable it go to Settings > Printing and choose “Cloud Print” & “HP Print Service Plugin” as “Off”.