* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): Just
call File.unlink and ignore ENOENT because existence check
before unlinking does not help in terms of race condition.
* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): My
comment about thread safeness is obsolete.
merge revision(s) 34413:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e