diff --git a/reactos/dll/win32/rpcrt4/unix_func.h b/reactos/dll/win32/rpcrt4/unix_func.h
deleted file mode 100644
index 4a100b7fbf6..00000000000
--- a/reactos/dll/win32/rpcrt4/unix_func.h
+++ /dev/null
@@ -1,12 +0,0 @@
-
-#define F_SETFL		4	/* set file->f_flags */
-
-#ifndef O_NONBLOCK
-#define O_NONBLOCK	00004000
-#endif
-
-#define	EINTR		 4	/* Interrupted system call */
-
-int poll(struct pollfd *fds, unsigned long nfds, int timo);
-int socketpair (int af, int type, int protocol, SOCKET socket[2]);
-int fcntl(int fd, int cmd, long arg);