TT#38454 Remove manual debootstrap 'apt-transport-https' from deployment.sh

The package 'apt-transport-https' is available on freshly debootstrapped
Debian stretch already, also NGCP depends on it via ngcp-nth-*.
Additionaly ngcp-installer check 'apt-transport-https' availability in 'check.inc'.
Moreover we will have to remove it here after migration to Debian buster,
as 'apt-transport-https' has been merged into 'apt' there.

Change-Id: I263e9010093096d7b50bb92ae39a996dc4838755

templates/scripts/includes/deployment.sh

@@ -1246,9 +1246,6 @@ openssh-server
 bridge-utils
 vlan
 
-# MT#13637 support https in sources.list
-apt-transport-https
-
 # TT#5444 ca-certificates is necessary to wget ngcp-installer over https
 ca-certificates