`SceneManager.loadComplete` will no longer try to unlock the Sound Manager, preventing `AudioContext was not allowed to start` console warnings after each Scene finishes loading.
`SceneManager.loadComplete` will no longer try to unlock the Sound Manager, preventing `AudioContext was not allowed to start` console warnings after each Scene finishes loading.

photonstorm/phaser,BeanSeed/phaser,spayton/phaser,photonstorm/phaser,BeanSeed/phaser,spayton/phaser