patch 8.2.5067: timer_create is not available on every Mac system

Problem:    Timer_create is not available on every Mac system. (Hisashi T
            Fujinaka)
Solution:   Adjust #ifdef.

src/os_unix.c

@@ -8247,7 +8247,7 @@ xsmp_close(void)
 #endif // USE_XSMP
 
 #if defined(FEAT_RELTIME) || defined(PROTO)
-# if defined(HAVE_TIMER_CREATE) || defined(MACOS_X)
+# if defined(HAVE_TIMER_CREATE)
 /*
  * Implement timeout with timer_create() and timer_settime().
  */

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    5067,
 /**/
     5066,
 /**/