MT#62325 Remove handling for Debian bullseye release

This was in place during the period where trunk was built for both
bullseye and bookworm, which has not been the case for a long time,
and it is dead code now. Remove the old support.

Change-Id: Ic2c4e06a13d03ffa02b01687f2c534099f0e4959

ngcp-system-tests

@@ -78,9 +78,6 @@ case "${NGCP_TESTS_MODE}" in
     # Translate Debian codenames that don't have a version number (yet) into
     # according numbers
     case "${DEBIAN_RELEASE}" in
-      bullseye*)
-        DEBIAN_RELEASE=11
-        ;;
       bookworm*)
         DEBIAN_RELEASE=12
         ;;

templates/200_user-debian.yaml.tt2

@@ -22,13 +22,8 @@ group:
     exists: true
     gid: 0
 
-{{if eq .Env.DEBIAN_RELEASE "11"}}
-  ssh:
-    exists: true
-{{else}}
   _ssh:
     exists: true
-{{end}}
 
   ssl-cert:
     exists: true