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_url_decode.md

@@ -1,18 +0,0 @@
----
-title: "mg_url_decode()"
-decl_name: "mg_url_decode"
-symbol_kind: "func"
-signature: |
-  int mg_url_decode(const char *src, int src_len, char *dst, int dst_len,
-                    int is_form_url_encoded);
----
-
-Decode URL-encoded string.
-
-Source string is specified by (`src`, `src_len`), and destination is
-(`dst`, `dst_len`). If `is_form_url_encoded` is non-zero, then
-`+` character is decoded as a blank space character. This function
-guarantees to `\0`-terminate the destination. If destination is too small,
-then source string is partially decoded and `-1` is returned. Otherwise,
-a length of decoded string is returned, not counting final `\0`. 
-