fix https://github.com/alibaba/macaca/issues/271 (#54)
fix https://github.com/alibaba/macaca/issues/271 (#54)

* fix #https://github.com/alibaba/macaca/issues/271

* remove call unsetIME method when stop device

* change style

* change style

* review fix

* disable 输入法

macacajs/macaca-android