snap: Remove setting LD_LIBRARY_PATH
snap: Remove setting LD_LIBRARY_PATH

When working with classic snap this causes gpg to stop working.
If switching to devmode revert this fix.

vathpela/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,vathpela/fwupd,vathpela/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,vathpela/fwupd,fwupd/fwupd