I do not know if this is a case to remove his certification. But you have to be recertified every so often I am sure.
I am not directly involved with the certification of law enforcement personnel by a state agency, but my son is a deputy sheriff here in Florida and I know that he has to be certified by the state or he can’t work for any agency or jurisdiction in the state. This sort of behavior would certainly result in him losing his certification. The agency is certifying that the person is qualified to be in LE. The inability to keep one’s temper and to refrain from behavior such as this officer demonstrated would, I think, be considered evidence that the person did not meet minimum standards.