Revert "server: split server.cpp code into server/common/task/queue (ggml-org#17362) * add server-task, server-common"

Author: Nexesenex

tools/server/server-common.h

@@ -1,6 +1,6 @@
+#include "utils.hpp"
 #include "common.h"
 #include "server-http.h"
-#include "server-common.h"
 
 #include <cpp-httplib/httplib.h>