redis disable snapshots

[rmalenko]

1. Disable AOF by setting the appendonly configuration directive to no (it is the default value)
2. Disable RDB snapshotting by disabling (commenting out) all of the save configuration directives (there are 3 that are defined by default)

I have changed for Redis 5.5 this template redis.conf.erb to have uncommented this string save ""

# Save the DB on disk:
# ...
#   It is also possible to remove all the previously configured save
#   points by adding a save directive with a single empty string argument
#   like in the following example:
#
#   save ""

<% if @save_db_to_disk %>
    <%- @save_db_to_disk_interval.sort_by{|k,v|k}.each do |seconds, key_change| -%>
    save <%= seconds -%> <%= key_change -%> <%= "\n" -%>
<%- end -%>
    <% else %>save ""
<% end %>