remove ftp.kr.FreeBSD.org from ruby mirror_sites

[kimuraw (kimura wataru)]

​ftp://ftp.kr.FreeBSD.org, one of ruby mirror_sites, is sometimes broken.

• #26116, #26211(Aug, 2010) ruby-1.8.7-p302.tar.bz2, ruby-1.9.1-p430.tar.bz2
  
• #28724(Mar, 2011) ruby-1.9.2-p0.tar.bz2
  
• NOW ruby-1.8.7-p352.tar.bz2
  

I think this mirror site is not enough stable. I hope to remove this site from ruby mirror_sites.

Index: port1.0/fetch/mirror_sites.tcl
===================================================================
--- port1.0/fetch/mirror_sites.tcl	(revision 80186)
+++ port1.0/fetch/mirror_sites.tcl	(working copy)
@@ -345,7 +345,6 @@
     ftp://ftp.easynet.be/ruby/ruby/
     ftp://ftp.ntua.gr/pub/lang/ruby/
     ftp://ftp.chg.ru/pub/lang/ruby/
-    ftp://ftp.kr.FreeBSD.org/pub/ruby/
     ftp://ftp.iDaemons.org/pub/mirror/ftp.ruby-lang.org/ruby/
     ftp://ftp.ruby-lang.org/pub/ruby/
 }