Remove dedicated release script for appimages

(cherry picked from commit 553c1993)

packaging/linux/appimage/build-release.sh

-#!/bin/bash
-
-# Halt on errors
-set -e
-
-# Be verbose
-set -x
-
-export BUILD_PREFIX=/home/krita/devel
-export INSTALLDIR=$BUILD_PREFIX/krita.appdir/usr
-export QTDIR=$BUILD_PREFIX/deps/usr
-export LD_LIBRARY_PATH=$QTDIR/sip:$QTDIR/lib/x86_64-linux-gnu:$QTDIR/lib:$BUILD_PREFIX/i/lib:$LD_LIBRARY_PATH
-export PATH=$QTDIR/bin:$BUILD_PREFIX/i/bin:$PATH
-export PKG_CONFIG_PATH=$QTDIR/share/pkgconfig:$QTDIR/lib/pkgconfig:/usr/lib/pkgconfig:$PKG_CONFIG_PATH
-export CMAKE_PREFIX_PATH=$QTDIR/lib/x86_64-linux-gnu:$BUILD_PREFIX:$QTDIR:$CMAKE_PREFIX_PATH
-
-export PYTHONPATH=$QTDIR/sip:$QTDIR/lib/python3.5/site-packages:$QTDIR/lib/python3.5
-export PYTHONHOME=$QTDIR
-
-# qjsonparser, used to add metadata to the plugins needs to work in a en_US.UTF-8 environment. That's
-# not always set correctly in CentOS 6.7
-export LC_ALL=en_US.UTF-8
-export LANG=en_us.UTF-8
-
-# Determine which architecture should be built
-if [[ "$(arch)" = "i686" || "$(arch)" = "x86_64" ]] ; then
-  ARCH=$(arch)
-else
-  echo "Architecture could not be determined"
-  exit 1
-fi
-
-git_pull_rebase_helper()
-{
-	git reset --hard HEAD
-	git pull --rebase
-}
-
-# A krita build layout looks like this:
-# krita/ -- the source directory
-# krita/3rdparty -- the cmake3 definitions for the dependencies
-# d -- downloads of the dependencies from files.kde.org
-# b -- build directory for the dependencies
-# krita_build -- build directory for krita itself
-# krita.appdir -- install directory for krita and the dependencies
-#
-# Krita should have been checked out in the build deps phase
-#
-# Get Krita
-if [ ! -d $BUILD_PREFIX/krita ] ; then
-  git clone  --depth 1 git://anongit.kde.org/krita $BUILD_PREFIX/krita
-fi
-
-
-cd $BUILD_PREFIX/krita/
-git_pull_rebase_helper
-
-
-
-# If the environment variable DO_NOT_BUILD_KRITA is set to something,
-# then stop here. This is for docker hub which has a timeout that
-# prevents us from building in one go.
-# if [ ! -z "$DO_NOT_BUILD_KRITA" ] ; then
-#  exit 0
-# fi
-
-
-rm -rf $BUILD_PREFIX/krita_build || true
-mkdir -p $BUILD_PREFIX/krita_build
-cd $BUILD_PREFIX/krita_build
-cmake $BUILD_PREFIX/krita \
-    -DCMAKE_INSTALL_PREFIX:PATH=$BUILD_PREFIX/krita.appdir/usr \
-    -DDEFINE_NO_DEPRECATED=1 \
-    -DCMAKE_BUILD_TYPE=Release \
-    -DFOUNDATION_BUILD=1 \
-    -DHIDE_SAFE_ASSERTS=ON \
-    -DBUILD_TESTING=FALSE \
-    -DPYQT_SIP_DIR_OVERRIDE=$QTDIR/share/sip/ \
-    -DHAVE_MEMORY_LEAK_TRACKER=FALSE
-    
-# build
-make -j10 install
-