archiso_http_srv is used in initramfs and we don't have a database
of trusted CAs there. So ignore all CA checks to allow downloading
from https at all.
Without this patch, airootfs.sfs is downloaded to /run/archiso/httpspace
and then copied to /run/archiso/bootmnt. copytoram is automatically
activated, which copies it to /run/archiso/copytoram and removes
/run/archiso/bootmnt. The original /run/archiso/httpspace was kept,
wasting ram.
This patch gets rid of /run/archiso/httpspace and directly downloads
to /run/archiso/bootmnt. This is then copied to copytoram and bootmnt
removed, so we don't keep two copies in ram anymore.