Not a concern. You won't see those messages if you use the emulator with a tx.ini file copied from your tx.
Looks like this behavior was introduced with changeset 499f1493e9e4, which removed some unnecessary parsing of touch-screen config values on non-touch-screen tx models. However the default tx.ini file contains a Touch section so the same default can be used for all tx models. The tx.ini created by the tx will not contain that section and so you won't see the warning messages.