TT#38454 Remove 'ca-certificates' package from ngcp debootstrap

ngcp-installer installs it already also puppet depends on it.
Also metapackages have dependency on it now.
Actually it looks like Debian stretch debootstrap installs
apt-transport-https out of the box which recommends 'ca-certificates'
as a result both are installed after the debootstrap.

Change-Id: I84fa358b61aed25594a38c21efaec27ba96d6918

templates/scripts/includes/deployment.sh

@@ -1237,9 +1237,6 @@ locales-all
 firmware-bnx2
 firmware-bnx2x
 
-# TT#5444 ca-certificates is necessary to wget ngcp-installer over https
-ca-certificates
-
 # required for dkms
 linux-headers-amd64
 EOF