owibranding.py: removed unused check for tpm before to check the hardware model
- this check is unuseful because it only assign the variable orgdream that is not currently used (maybe forgot to remove)
- this check cause an error with images like BlackHole that pass the Etpm import but have not all tpm functions
- this check is duplicated because there is the Tpm check in the right place: in Dmm block condition