If Hitler had been assassinated, could the holocaust & world war II have been averted?

I was watching a documentary yesterday in which it was stated that Hitler was the subject of as many as forty two known assassination attempts throughout his infamous reign. It was further claimed that as a result of surviving these numerous failed attempts, he thought it was divine intervention that he was immortal/invincible. However if any one of those plots had succeeded in ridding the world of this abhorrent threat, would it have had any effect at all on the wretched turmoil that was soon to unfold or not? I realise of course that it’s not an exact science predicting what might have been but would appreciate your best guess on the matter.