If you have the
Community Pack installed and you turn on "
ShadowChemosh Adjustments". Then after adding the Lizardfolk race you can use the adjustment "
Race, Hit Dice Remove" to remove the two hit dice.
I did just notice that not all the Hit Points are being removed correctly. So until I get that fixed you can just use the "
Hit Points" adjustment to adjust the HP back to zero before adding a class.