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/util.h/mg_base64_encode.md

@@ -1,12 +0,0 @@
----
-title: "mg_base64_encode()"
-decl_name: "mg_base64_encode"
-symbol_kind: "func"
-signature: |
-  void mg_base64_encode(const unsigned char *src, int src_len, char *dst);
----
-
-Base64-encode chunk of memory `src`, `src_len` into the destination `dst`.
-Destination has to have enough space to hold encoded buffer.
-Destination is '\0'-terminated. 
-