diff --git a/helpers/make-sane-backends b/helpers/make-sane-backends
deleted file mode 100644
index 96c02ef47fcbd6b5b2497952a5c1ce1fd1780e1a..0000000000000000000000000000000000000000
--- a/helpers/make-sane-backends
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-#
-#    Copyright (C) 2014 Andrew M. Lindley <andrew@andrewlindley.co.uk>
-#
-#    This program is free software; you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation; either version 2 of the License, or
-#    (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU General Public License for more details.
-#
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-#
-
-VERSION=1
-
-. ./config
-
-cp $DATA/snprintf.c ./lib/
-cat $DATA/copyright.snprintf >> debian/copyright
-
-changelog "Replace non-free snprintf #10713"
-
-compile
-
diff --git a/helpers/make-sane-backends-extras b/helpers/make-sane-backends-extras
deleted file mode 100644
index 1218d9f73cd8d7313fe1a85ad2b63d5bb3886516..0000000000000000000000000000000000000000
--- a/helpers/make-sane-backends-extras
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-#
-#    Copyright (C) 2014 Andrew M. Lindley <andrew@andrewlindley.co.uk>
-#
-#    This program is free software; you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation; either version 2 of the License, or
-#    (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU General Public License for more details.
-#
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-#
-
-VERSION=1
-
-. ./config
-
-cp $DATA/snprintf.c ./lib/
-cat $DATA/copyright.snprintf >> debian/copyright
-
-changelog "Replace non-free snprintf #11795"
-
-compile
-
diff --git a/helpers/make-sane-frontends b/helpers/make-sane-frontends
deleted file mode 100644
index d01d5ed16ec277b4527896f6307d92203befba96..0000000000000000000000000000000000000000
--- a/helpers/make-sane-frontends
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-#
-#    Copyright (C) 2014 Andrew M. Lindley <andrew@andrewlindley.co.uk>
-#
-#    This program is free software; you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation; either version 2 of the License, or
-#    (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU General Public License for more details.
-#
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-#
-
-VERSION=1
-
-. ./config
-
-cp $DATA/snprintf.c ./lib/
-cat $DATA/copyright.snprintf >> debian/copyright
-
-changelog "Replace non-free snprintf #10793"
-
-compile
-
diff --git a/helpers/make-xsane b/helpers/make-xsane
deleted file mode 100644
index 8d2d1183089053eb44bd10a529eb7cde4bbcab42..0000000000000000000000000000000000000000
--- a/helpers/make-xsane
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-#
-#    Copyright (C) 2014 Andrew M. Lindley <andrew@andrewlindley.co.uk>
-#
-#    This program is free software; you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation; either version 2 of the License, or
-#    (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU General Public License for more details.
-#
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-#
-
-VERSION=1
-
-. ./config
-
-cp $DATA/snprintf.c ./lib/
-cat $DATA/copyright.snprintf >> debian/copyright
-
-changelog "Replace non-free snprintf #10794"
-
-compile
-