remove garbage for addBehavior/removeBehavior (#3217)
remove garbage for addBehavior/removeBehavior (#3217)


mkungla/aframe,ngokevin/aframe,chenzlabs/aframe,aframevr/aframe,ngokevin/aframe,wizgrav/aframe,RSpace/aframe,chenzlabs/aframe,dmarcos/aframe,wizgrav/aframe,aframevr/aframe,RSpace/aframe,dmarcos/aframe,mkungla/aframe