minor BotData cleanup
minor BotData cleanup

stevengum97/BotBuilder,yakumo/BotBuilder,xiangyan99/BotBuilder,msft-shahins/BotBuilder,msft-shahins/BotBuilder,stevengum97/BotBuilder,yakumo/BotBuilder,msft-shahins/BotBuilder,msft-shahins/BotBuilder,stevengum97/BotBuilder,xiangyan99/BotBuilder,yakumo/BotBuilder,xiangyan99/BotBuilder,xiangyan99/BotBuilder,stevengum97/BotBuilder,yakumo/BotBuilder