Temporarily disable appdash from docker-compose

Until I read the doc and find how to limit the retention,
otherwise it just eats all my ram and cpu and things start to fall
apart.

PUBLISHED_FROM=eb33fb44736f07b992270689217aca4af70513ff

docs/c-api/dns-server.h/mg_dns_send_reply.md

@@ -1,19 +0,0 @@
----
-title: "mg_dns_send_reply()"
-decl_name: "mg_dns_send_reply"
-symbol_kind: "func"
-signature: |
-  void mg_dns_send_reply(struct mg_connection *nc, struct mg_dns_reply *r);
----
-
-Send a DNS reply through a connection.
-
-The DNS data is stored in an IO buffer pointed by reply structure in `r`.
-This function mutates the content of that buffer in order to ensure that
-the DNS header reflects size and flags of the mssage, that might have been
-updated either with `mg_dns_reply_record` or by direct manipulation of
-`r->message`.
-
-Once sent, the IO buffer will be trimmed unless the reply IO buffer
-is the connection's send buffer and the connection is not in UDP mode. 
-