Avoid installing packages and moving files outside path

helpers/make-ubuntu-release-upgrader

@@ -35,10 +35,6 @@ sed s/self._test_and_warn_on_dropped_fglrx_support/#self._test_and_warn_on_dropp
 sed '/nvidia/d' DistUpgrade/build-tarball.sh -i
 rm tests/test-data/xorg.conf.fglrx
 
-#% Make sure nvidia-common and fglrx-modaliases are not installed
-apt-get remove --purge -y nvidia-common  || true 
-apt-get remove --purge -y fglrx-modaliases || true
-
 #https://bugs.launchpad.net/ubuntu/+source/python-defaults/+bug/990740
 cat << EOF >> DistUpgrade/DistUpgradeQuirks.py
 
@@ -195,7 +191,6 @@ EOF
 
 rm DistUpgrade/EOLReleaseAnnouncement.html DistUpgrade/ReleaseAnnouncement.html
 
-apt-get install -q -y parsewiki
 parsewiki DistUpgrade/EOLReleaseAnnouncement > DistUpgrade/EOLReleaseAnnouncement.html
 parsewiki DistUpgrade/ReleaseAnnouncement > DistUpgrade/ReleaseAnnouncement.html
 
@@ -267,7 +262,6 @@ replace changelogs.ubuntu.com packages.trisquel.info .
 
 /bin/sed -i 's/�~Lubuntu/�~Ltrisquel/g; s/被ubuntu/被trisquel/g; s#http://launchpad.net/ubuntu/+source/%s/%s/+changelog#http://trisquel.info/project/issues#g; s/<.*@ubuntu.com/<info@trisquel.info/g; s/ ubuntu\n/ trisquel\n/g; s/ubuntu\ /trisquel\ /g; s/\ ubuntu/\ trisquel/g; s/Ubuntu/Trisquel/g; s/ubuntu-desktop/trisquel-/g; s/www.ubuntu.com/trisquel.info/g; s/www.ubuntulinux.org/trisquel.info/g ' po/*.po $(find | grep py$) $(find | grep '\.glade$')
 
-apt-get install --force-yes -y rpl
 rpl 11\.04 5\.0 DistUpgrade/*.ui
 rpl 11\.04 5\.0 po/* -R
 rpl 11\.10 5\.5 DistUpgrade/*.ui
@@ -327,4 +321,3 @@ changelog "Compiled for Trisquel"
 
 PARALLEL=false compile
 
-cp ../dist-upgrader* /root