Remove the run-time tick warning - too many false positives.

This reverts commit 7cc631ac.

src/misc/mtime.c

@@ -373,27 +373,6 @@ void mwait( mtime_t date )
  */
 void msleep( mtime_t delay )
 {
-#ifndef NDEBUG
-# if defined (__linux__)
-    /* We assume that proper use of msleep() will not use a constant period...
-     * Media synchronization is likely to use mwait() with at least slight
-     * sleep length variation at microsecond precision. Network protocols
-     * normally have exponential backoffs, or long delays. */
-    static __thread unsigned tick_period = 0;
-    static __thread unsigned tick_frequency = 0;
-    if (tick_period != delay)
-        tick_frequency = 0;
-    tick_frequency++;
-    tick_period = delay;
-    if (delay < (29 * CLOCK_FREQ) && tick_frequency == 20)
-    {
-         fprintf (stderr, "Likely bogus delay(%"PRIu64"µs) ", delay);
-         vlc_backtrace ();
-    }
-    //fprintf (stderr, "%u, %u\n", tick_period, tick_frequency);
-# endif
-#endif
-
 #if defined( HAVE_CLOCK_NANOSLEEP )
     lldiv_t d = lldiv( delay, 1000000 );
     struct timespec ts = { d.quot, d.rem * 1000 };