Remove calculation of Cp0 and CpInf in getThermoData() function.
Remove calculation of Cp0 and CpInf in getThermoData() function.

It is already being calculated in the subfunctions getThermoDataFromLibraries
and getThermoDataFromGroups

comocheng/RMG-Py,nyee/RMG-Py,enochd/RMG-Py,comocheng/RMG-Py,pierrelb/RMG-Py,chatelak/RMG-Py,enochd/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py,nickvandewiele/RMG-Py