webdebugger/build/app.js
function (child, node) {
	      var update = this.removeChild(child, node);
	      child._mountIndex = null;
	      return update;
	    }
function (child, node) {
	      var update = this.removeChild(child, node);
	      child._mountIndex = null;
	      return update;
	    }
function ( child , node ) { var update = this . removeChild ( child , node ) ; child . _mountIndex = null ; return update ; }
Unmounts a rendered child.

NOTE: This is part of `updateChildren` and is here for readability.

@param {ReactComponent} child Component to unmount.
@private
Unmounts a rendered child .