--- a/misc/winutils/include/libavutil/time.h	Wed Jul 31 23:14:27 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,39 +0,0 @@
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_TIME_H
-#define AVUTIL_TIME_H
-
-#include <stdint.h>
-
-/**
- * Get the current time in microseconds.
- */
-int64_t av_gettime(void);
-
-/**
- * Sleep for a period of time.  Although the duration is expressed in
- * microseconds, the actual delay may be rounded to the precision of the
- * system timer.
- *
- * @param  usec Number of microseconds to sleep.
- * @return zero on success or (negative) error code.
- */
-int av_usleep(unsigned usec);
-
-#endif /* AVUTIL_TIME_H */