diff --git a/extra/mkimg.sh b/extra/mkimg.sh
deleted file mode 100755
index 836a75a..0000000
--- a/extra/mkimg.sh
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/bin/bash
-
-# This script is to prepare and build a deb package of freecad Link branch, and
-# build an AppImage using the deb package with asm3 installed
-# 
-# You need to setup pbuilder before being able to build a deb package
-# indepedent of your own system. Run,
-#
-#   auto apt install gnupg pbuilder ubuntu-dev-tools apt-file eatmydata
-#
-# Create a pbuilder distribution. Since AppImage has better support for trusty,
-# we shall stick to that. Run,
-#
-#   pbuilder-dist create trusty 
-# 
-# Create ~/.pbuilderrc with the following content
-#
-#   OTHERMIRROR="deb http://ppa.launchpad.net/freecad-maintainers/freecad-daily/ubuntu trusty main"
-#   PTCACHEHARDLINK=no
-#   CCACHEDIR=/var/cache/pbuilder/ccache
-#   PACKAGES=eatmydata
-#   EATMYDATA=yes
-#
-# Login to pbuilder to change a few setting,
-#
-#   pbuilder-dist trusty login --save-after-login
-#
-# You have just entered a chroot environement, now install eatmydata for better
-# performance,
-#
-#   apt-get install eatmydata
-#
-# Add key for freecad-daily ppa, and exit
-#
-#   apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 83193AA3B52FF6FCF10A1BBF005EAE8119BB5BCA
-#   exit 
-#
-# Update pbuilder source list
-#   
-#   pbuilder-dist trusty update --release-only
-#
-# Done. 
-# 
-#
-# References
-#
-# http://packaging.ubuntu.com/html/getting-set-up.html
-# https://askubuntu.com/questions/265703/how-to-do-a-pbuilder-dist-build-with-dependencies-in-a-ppa
-# https://wiki.ubuntu.com/PbuilderHowto#pdebuild
-
-set -ex
-
-build=2
-case "$1" in
-    prepare)
-        build=0
-        ;;
-    deb)
-        build=1
-        ;;
-    *)
-        cat << EOS
-usage: $0 [prepare|deb]
-
-prepare: only prepare a source repo of FreeCAD Link branch
-deb: build deb package using pbuilder
-
-Default behavior is to make sure repo is up to date, and deb package is built,
-and then build the AppImage.
-
-If everything runs find, the final AppImage will be located at img sub
-directory.
-EOS
-esac
-
-mkdir -p ./img
-cd img
-dir=$PWD
-
-if ! test -d repo; then
-    git clone https://github.com/realthunder/FreeCAD.git repo
-    cd repo
-    git checkout LinkStage3
-else
-    cd repo
-    git pull
-fi
-
-mkdir -p build
-cd build
-cmake ..
-cp ./src/Build/Version.h ../src/Build/
-cd ..
-rm -rf debian
-
-cd $dir
-if ! test -d gitpackaging; then
-    git clone https://git.launchpad.net/~freecad-maintainers/+git/gitpackaging 
-fi
-
-cp -a gitpackaging/debian repo/
-
-cd repo
-echo y | debuild -S -d -us -uc
-
-if [ $build -gt 0 ]; then
-    gitdate=`date -d "$(git show -s --format=%aI)" +%Y%m%d%H%M`
-    debdate=0
-    debfile=$HOME/pbuilder/trusty_result/freecad-daily*amd64.deb
-    if test -f $debfile; then
-        debdate=`date -r $debfile +%Y%m%d%H%M`
-    fi
-    if [ $debdate -lt $gitdate ]; then
-        pbuilder_dir=$HOME/pbuilder/trusty_result
-        mkdir -p $pbuilder_dir/old
-        mv $pbuilder_dir/freecad-daily* $pbuilder_dir/old/ || true
-        pbuilder-dist trusty build ../*.dsc
-    fi
-fi
-
-cd ..
-if [ $build -gt 1 ]; then
-    if ! test -d AppImages; then
-        git clone https://github.com/realthunder/AppImages.git
-        cd AppImages
-        git checkout PostScript
-    else
-        cd AppImages
-    fi
-    
-    bash -ex ./pkg2appimage recipes/FreeCAD-asm3.yml
-    mv out/FreeCAD-asm3* ../
-fi
-