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_file_upload_handler.md

@@ -1,39 +0,0 @@
----
-title: "mg_file_upload_handler()"
-decl_name: "mg_file_upload_handler"
-symbol_kind: "func"
-signature: |
-  void mg_file_upload_handler(struct mg_connection *nc, int ev, void *ev_data,
-                              mg_fu_fname_fn local_name_fn);
----
-
-File upload handler.
-This handler can be used to implement file uploads with minimum code.
-This handler will process MG_EV_HTTP_PART_* events and store file data into
-a local file.
-`local_name_fn` will be invoked with whatever name was provided by the client
-and will expect the name of the local file to open. Return value of NULL will
-abort file upload (client will get a "403 Forbidden" response). If non-null,
-the returned string must be heap-allocated and will be freed by the caller.
-Exception: it is ok to return the same string verbatim.
-
-Example:
-
-```c
-struct mg_str upload_fname(struct mg_connection *nc, struct mg_str fname) {
-  // Just return the same filename. Do not actually do this except in test!
-  // fname is user-controlled and needs to be sanitized.
-  return fname;
-}
-void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
-  switch (ev) {
-    ...
-    case MG_EV_HTTP_PART_BEGIN:
-    case MG_EV_HTTP_PART_DATA:
-    case MG_EV_HTTP_PART_END:
-      mg_file_upload_handler(nc, ev, ev_data, upload_fname);
-      break;
-  }
-}
-``` 
-