Keep directory listing compile-time option

src/http.c

@@ -868,11 +868,7 @@ void mg_http_serve_dir(struct mg_connection *c, struct mg_http_message *hm,
 #endif
       if (is_index && fp == NULL) {
 #if MG_ENABLE_DIRECTORY_LISTING
-        if (opts->enable_dirlist && strcmp(opts->enable_dirlist, "no") == 0) {
-          mg_http_reply(c, 403, "", "%s", "Denied");
-        } else {
-          listdir(c, hm, opts, t2);
-        }
+        listdir(c, hm, opts, t2);
 #else
         mg_http_reply(c, 403, "", "%s", "Directory listing not supported");
 #endif

src/http.h

@@ -26,7 +26,6 @@ struct mg_http_serve_opts {
   const char *root_dir;        // Web root directory, must be non-NULL
   const char *ssi_pattern;     // SSI file name pattern, e.g. #.shtml
   const char *extra_headers;   // Extra HTTP headers to add in responses
-  const char *enable_dirlist;  // Enable dir listing. Set to "no" to disable
 };
 
 // Parameter for mg_http_next_multipart