remove safari workaround UtteranceWRappers in handleSpeechSynthesisEnd, see https://github.com/phetsims/utterance-queue/issues/43
remove safari workaround UtteranceWRappers in handleSpeechSynthesisEnd, see https://github.com/phetsims/utterance-queue/issues/43

phetsims/scenery,phetsims/scenery,phetsims/scenery