How to disable avatar?

Sex: 
Unknown
Spayed/Neutered: 
No
Age: 
regrestoja@gazeta.pl
Breed: 
regrestoja@gazeta.pl
Color(s): 
regrestoja@gazeta.pl
Reason for adoption: 
regrestoja@gazeta.pl
Hello i am new user and i would to ask you, How to disable avatar?
Owner's name: 
belleWounc
City: 
Willemstad
State: 
Oregon