Revert "rgw: use camelcase format to specify field name in request he…

…ader"

This reverts commit c6595c9.

src/rgw/rgw_http_client.cc

@@ -238,37 +238,6 @@ void RGWHTTPClient::_set_read_paused(bool pause)
   }
 }
 
-/*
- * make attrs Look-Like-This
- * converts underscores to dashes
- */
-static string camelcase_dash_http_attr(const string& orig)
-{
-  const char *s = orig.c_str();
-  char buf[orig.size() + 1];
-  buf[orig.size()] = '\0';
-
-  bool last_sep = true;
-
-  for (size_t i = 0; i < orig.size(); ++i, ++s) {
-    switch (*s) {
-      case '_':
-      case '-':
-        buf[i] = '-';
-        last_sep = true;
-        break;
-      default:
-        if (last_sep) {
-          buf[i] = toupper(*s);
-        } else {
-          buf[i] = tolower(*s);
-        }
-        last_sep = false;
-    }
-  }
-  return string(buf);
-}
-
 static curl_slist *headers_to_slist(param_vec_t& headers)
 {
   curl_slist *h = NULL;
@@ -282,8 +251,6 @@ static curl_slist *headers_to_slist(param_vec_t& headers)
       val = val.substr(5);
     }
 
-    val = camelcase_dash_http_attr(val);
-
     /* we need to convert all underscores into dashes as some web servers forbid them
      * in the http header field names
      */