hashmaps: reduce size when key is removed
hashmaps: reduce size when key is removed

mario-campos/clay,mario-campos/clay,aep/clay,iamrekcah/clay,jckarter/clay,iamrekcah/clay,aep/clay,mario-campos/clay,jckarter/clay,jckarter/clay,mario-campos/clay,aep/clay,jckarter/clay,jckarter/clay,aep/clay,aep/clay,iamrekcah/clay,jckarter/clay,aep/clay,iamrekcah/clay,mario-campos/clay,iamrekcah/clay