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/http.h/mg_send_websocket_handshake.md

@@ -1,22 +0,0 @@
----
-title: "mg_send_websocket_handshake()"
-decl_name: "mg_send_websocket_handshake"
-symbol_kind: "func"
-signature: |
-  void mg_send_websocket_handshake(struct mg_connection *nc, const char *uri,
-                                   const char *extra_headers);
----
-
-Send websocket handshake to the server.
-
-`nc` must be a valid connection, connected to a server. `uri` is an URI
-to fetch, extra_headers` is extra HTTP headers to send or `NULL`.
-
-This function is intended to be used by websocket client.
-
-Note that the Host header is mandatory in HTTP/1.1 and must be
-included in `extra_headers`. `mg_send_websocket_handshake2` offers
-a better API for that.
-
-Deprecated in favour of `mg_send_websocket_handshake2` 
-