Change: Do not define demidecode variables on rhel4
Change: Do not define demidecode variables on rhel4

Ref: https://dev.cfengine.com/issues/6302#note-8

For consistency in reporting (and a small decrease in storage space
required) it is better to not define inventory variables that are
unsupported.

martingehrke/masterfiles,frap/masterfiles-1,maciejmrowiec/masterfiles,phnakarin/masterfiles,frap/masterfiles-1,martingehrke/masterfiles,maciejmrowiec/masterfiles,phnakarin/masterfiles,martingehrke/masterfiles,phnakarin/masterfiles,maciejmrowiec/masterfiles,frap/masterfiles-1