Revert replacement

Author: geographika

cgi/mapcache.c

@@ -253,7 +253,7 @@ static void set_headers(mapcache_context* ctx, char** env)
         // convert HTTP header keys from the form HTTP_MY_HEADER to MY-HEADER
         key = apr_strtok(kvp, "=", &pair);
         key = mapcache_util_str_replace(ctx->pool, key, "HTTP_", "");
-        key = mapcache_util_str_replace_all(ctx->pool, apr_pstrdup(ctx->pool, key), "_", "-");
+        //key = mapcache_util_str_replace_all(ctx->pool, key, "_", "-");
 
         val = apr_strtok(NULL, "=", &pair);