Remove old 5.1-* bits

[Jun Kuriyama]

Hi re@,

Could you please removing following directories?

drwxrwxr-x  15 scottl  archive  1024 Jun  1 06:34 alpha/5.1-RC1
drwxr-xr-x  19 scottl  archive  1024 May 31 21:47 i386/5.1-RC1
drwxrwxr-x  13 marcel  archive  1024 Jun  3 19:44 ia64/5.1-RC1
drwxr-xr-x  19 scottl  archive  1024 May  9 17:37 pc98/5.1-BETA
drwxr-xr-x  13 scottl  archive  1024 May 20 12:04 sparc64/5.1-BETA2


-- 
Jun Kuriyama <kuriyama at imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama at FreeBSD.org> // FreeBSD Project