refactor(aurelia): remove transition param from setRoot
refactor(aurelia): remove transition param from setRoot

The transition is not used in the implementation and will likely be
handled by the animation system in the future.

BREAKING CHANGE

tjkr/framework,davismj/framework,aurelia/framework,amtkmrsmn/framework,wrenth04/framework,JeroenVinke/framework,coder369/framework,paritoshmmmec/framework,alexmills/framework,aurelia/framework,xiwc/framework,2005ccy/framework,simudream/framework,gdi2290/framework,IbrahimAmin/framework,beni55/framework,cmichaelgraham/framework,dreamingbinary/framework,ahmedshuhel/framework,behzad88/framework,hitesh97/framework,djjlewis/framework,milunka/framework,abbasmhd/framework,c-rack/framework,nomack84/framework,mubassirhayat/framework,feluraschi/framework