diff --git a/lib/irb/workspace-binding-2.rb b/lib/irb/workspace-binding-2.rb
deleted file mode 100644
index d005296f6e..0000000000
--- a/lib/irb/workspace-binding-2.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-#   bind.rb - 
-#   	$Release Version: $
-#   	$Revision$
-#   	$Date$
-#   	by Keiju ISHITSUKA(Nihon Rational Software Co.,Ltd)
-#
-# --
-#
-#   
-#
-
-while true
-  IRB::BINDING_QUEUE.push b = binding
-end
diff --git a/lib/irb/workspace-binding.rb b/lib/irb/workspace-binding.rb
deleted file mode 100644
index d58088d9dd..0000000000
--- a/lib/irb/workspace-binding.rb
+++ /dev/null
@@ -1,77 +0,0 @@
-#
-#   workspace-binding.rb - 
-#   	$Release Version: $
-#   	$Revision$
-#   	$Date$
-#   	by Keiju ISHITSUKA(Nihon Rational Software Co.,Ltd)
-#
-# --
-#
-#   
-#
-
-
-module IRB
-  # create new workspace. 
-  def IRB.workspace_binding(*main)
-    if @CONF[:SINGLE_IRB]
-      bind = TOPLEVEL_BINDING
-    else
-      case @CONF[:CONTEXT_MODE]
-      when 0
-	bind = eval("proc{binding}.call",
-		    TOPLEVEL_BINDING, 
-		    "(irb_local_binding)",
-		    1)
-      when 1
-	require "tempfile"
-	f = Tempfile.open("irb-binding")
-	f.print <<EOF
-	$binding = binding
-EOF
-	f.close
-	load f.path
-	bind = $binding
-
-      when 2
-	unless defined? BINDING_QUEUE
-	  require "thread"
-	  
-	  IRB.const_set("BINDING_QUEUE", SizedQueue.new(1))
-	  Thread.abort_on_exception = true
-	  Thread.start do
-	    eval "require \"irb/workspace-binding-2\"", TOPLEVEL_BINDING, __FILE__, __LINE__
-	  end
-	  Thread.pass
-
-	end
-
-	bind = BINDING_QUEUE.pop
-
-      when 3
-	bind = eval("def irb_binding; binding; end; irb_binding",
-		    TOPLEVEL_BINDING, 
-		    __FILE__,
-		    __LINE__ - 3)
-      end
-    end
-    unless main.empty?
-      @CONF[:__MAIN__] = main[0]
-      case main[0]
-      when Module
-	bind = eval("IRB.conf[:__MAIN__].module_eval('binding')", bind)
-      else
-	begin 
-	  bind = eval("IRB.conf[:__MAIN__].instance_eval('binding')", bind)
-	rescue TypeError
-	  IRB.fail CanNotChangeBinding, main[0].inspect
-	end
-      end
-    end
-    eval("_=nil", bind)
-    bind
-  end
-
-  def IRB.delete_caller
-  end
-end