Remove the posix based #ifdef from version.h
Remove the posix based #ifdef from version.h

 Use the BOARD_NAME distributed to the board_config.h files
 for posix derived targets

mcgill-robotics/Firmware,PX4/Firmware,dagar/Firmware,krbeverx/Firmware,acfloria/Firmware,dagar/Firmware,jlecoeur/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,PX4/Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,jlecoeur/Firmware,dagar/Firmware,dagar/Firmware,krbeverx/Firmware,krbeverx/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,Aerotenna/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,dagar/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,Aerotenna/Firmware,PX4/Firmware,Aerotenna/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,dagar/Firmware,krbeverx/Firmware,mcgill-robotics/Firmware,acfloria/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,acfloria/Firmware,krbeverx/Firmware,PX4/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,PX4/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,dagar/Firmware,acfloria/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware,acfloria/Firmware