Remove support of ancient (pre-8.0R, 800041) FreeBSD releases.

MFC after:	2 weeks

usr.bin/fortune/strfile/strfile.c

@@ -438,10 +438,6 @@ randomize(void)
 	off_t tmp;
 	off_t *sp;
 
-#if __FreeBSD_version < 800041
-	srandomdev();
-#endif
-
 	Tbl.str_flags |= STR_RANDOM;
 	cnt = Tbl.str_numstr;
 
@@ -450,11 +446,7 @@ randomize(void)
 	 */
 
 	for (sp = Seekpts; cnt > 0; cnt--, sp++) {
-#if __FreeBSD_version < 800041
-		i = random() % cnt;
-#else
 		i = arc4random_uniform(cnt);
-#endif
 		tmp = sp[0];
 		sp[0] = sp[i];
 		sp[i] = tmp;