(a) Remove unnecessary null check. (b) Remove unused function. (c) Clean up for TextToSpeech#shutdown. Change-Id: I3ec5bccc327437064da130634a14aaf7d48eca4d
(a) Remove unnecessary null check. (b) Remove unused function. (c) Clean up for TextToSpeech#shutdown. Change-Id: I3ec5bccc327437064da130634a14aaf7d48eca4d