1 files changed, 0 insertions, 19 deletions
diff --git a/ext/pathname/lib/pathname.rb b/ext/pathname/lib/pathname.rb
index 88453c3c66..b0639a4079 100644
--- a/ext/pathname/lib/pathname.rb
+++ b/ext/pathname/lib/pathname.rb
@@ -31,25 +31,6 @@ class Pathname
 
   # :startdoc:
 
-  # Return a pathname which is substituted by String#sub.
-  def sub(pattern, *rest, &block)
-    if block
-      path = @path.sub(pattern, *rest) {|*args|
-        begin
-          old = Thread.current[:pathname_sub_matchdata]
-          Thread.current[:pathname_sub_matchdata] = $~
-          eval("$~ = Thread.current[:pathname_sub_matchdata]", block.binding)
-        ensure
-          Thread.current[:pathname_sub_matchdata] = old
-        end
-        yield(*args)
-      }
-    else
-      path = @path.sub(pattern, *rest)
-    end
-    self.class.new(path)
-  end
-
   if File::ALT_SEPARATOR
     SEPARATOR_LIST = "#{Regexp.quote File::ALT_SEPARATOR}#{Regexp.quote File::SEPARATOR}"
     SEPARATOR_PAT = /[#{SEPARATOR_LIST}]/