find(1): remove portability ifdefs

This code isn't designed to be particularly portable outside of FreeBSD.
To be more specific it doesn't make much sense to support compiling
find(1) on VMS.

usr.bin/find/getdate.y

@@ -23,24 +23,13 @@ __FBSDID("$FreeBSD$");
    tricks are need, but defaults to using the gettimeofday system call.
    Include <sys/time.h> if that will be used.  */
 
-#if	defined(vms)
-# include <types.h>
-#else /* defined(vms) */
 # include <sys/types.h>
 # include <sys/time.h>
-#endif	/* !defined(vms) */
 
 #if defined (__STDC__) || defined (USG)
 #include <string.h>
 #endif
 
-/* Some old versions of bison generate parsers that use bcopy.
-   That loses on systems that don't provide the function, so we have
-   to redefine it here.  */
-#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
-#define bcopy(from, to, len) memcpy ((to), (from), (len))
-#endif
-
 #if defined (__STDC__)
 #include <stdlib.h>
 #endif