message: Update: delete a variable which is used in one place
diff: @@ -9,8 +9,7 @@ export class InputMethodSwitcher {
  private savedIMKey = '';
  public async switchInputMethod(prevMode: ModeName, newMode: ModeName) {
  - const enableAutoSwitch = configuration.autoSwitchIM.enable;
  - if (enableAutoSwitch !== true) {
  + if (configuration.autoSwitchIM.enable !== true) {
  return;
  }
  // when you exit from insert-like mode, save origin input method and set it to default
  