Remove allow-downgrade and dist-upgrades parts from up.sh

These changes were not needed and have negative impact on
the node deployment process.

Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
Change-Id: I134a2acdf831f1c1e2f475a09b2f1d4a85cf68bf

promenade/templates/include/up.sh

@@ -111,7 +111,6 @@ while true; do
     if ! DEBIAN_FRONTEND=noninteractive apt-get install \
       -o Dpkg::Options::="--force-confold" \
       -y \
-      --allow-downgrades \
       --no-install-recommends \
       {%- for role in roles %}
         {%- for package in config.get_path('HostSystem:packages.' + role + '.required',{}).values() %}
@@ -133,9 +132,6 @@ while true; do
     fi
 done
 
-sed -i -e 's/slot //g' /lib/systemd/network/99-default.link
-DEBIAN_FRONTEND=noninteractive apt-get upgrade -o Dpkg::Options::="--force-confold" -q -y --allow-downgrades --no-install-recommends
-
 # Start core processes
 #
 set +x