[database]: Remove hard/soft limits for client-output-buffer in redis (…

…#539)

* Remove hard/soft limits for client-output-buffer in redis

Otherwise when we have a lot of updates from orchagent to syncd latter
one can't process queues fast enough and redic-database disconnect both
orchagent and syncd. orchagent and syncd doesn't have logic to deal with
it and just crash

dockers/docker-database/Dockerfile.j2

@@ -28,7 +28,8 @@ RUN sed -ri 's/^(save .*$)/# \1/g;
              s/^daemonize yes$/daemonize no/;                                           \
              s/^logfile .*$/logfile ""/;                                                \
              s/^# syslog-enabled no$/syslog-enabled no/;                                \
-             s/^# unixsocket/unixsocket/                                                \
+             s/^# unixsocket/unixsocket/;                                               \
+             s/^client-output-buffer-limit pubsub [0-9]+mb [0-9]+mb [0-9]+/client-output-buffer-limit pubsub 0 0 0/ \
             ' /etc/redis/redis.conf
 
 ENTRYPOINT ["/usr/bin/redis-server", "/etc/redis/redis.conf"]