environment: Stop sanitizing strings
DeSmuME 2015 and Gambatte don't like this. It's not clear why - returning NULL there is entirely valid, but it's possible we set those directories too late.
Reverts commit b782c726
DeSmuME 2015 and Gambatte don't like this. It's not clear why - returning NULL there is entirely valid, but it's possible we set those directories too late.
Reverts commit b782c726