diff --git a/src/backend/bootstrap/boot.sed b/src/backend/bootstrap/boot.sed
deleted file mode 100644
index 8ec71025ce..0000000000
--- a/src/backend/bootstrap/boot.sed
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# lex.sed - sed rules to remove conflicts between the 
-#               bootstrap backend interface LEX scanner and the
-#               normal backend SQL LEX scanner
-#
-# $Header: /cvsroot/pgsql/src/backend/bootstrap/Attic/boot.sed,v 1.1.1.1 1996/07/09 06:21:14 scrappy Exp $
-#
-s/^yy/Int_yy/g
-s/\([^a-zA-Z0-9_]\)yy/\1Int_yy/g