removed a line.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31673 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2011-05-21 15:27:28 +00:00 · 2011-05-21 15:27:28 +00:00 · c113796e40
--- a/ext/.document
+++ b/ext/.document
@ -5,7 +5,6 @@ bigdecimal/lib
 coverage/coverage.c
 curses/curses.c
 date/date_core.c
-date/lib
 dbm/dbm.c
 digest/bubblebabble/bubblebabble.c
 digest/digest.c