contrib: remove deprecated offline repo package lists

contrib/rootfs/offline_repo_packages

-#Packages that should go in the offline repository.
-#Dependencies are included automatically.
-
-#Common packages
-gufw
-pwgen
-inkscape
-gimp
-subversion
-git
-graphviz
-gnome
-xubuntu-desktop
-fityk
-openssh-server
-linux-firmware-nonfree
-zsh
-zsh-doc
-lftp
-gddrescue
-
-#Physik
-liblapack-dev
-liblapack-doc
-python-numpy
-python-simpy
-python-scipy
-python-matplotlib
-ipython
-gnuplot
-wxmaxima
-root-system
-bpython
-spyder
-
-#Informatik
-postgresql
-dia
-#haskell-platform
-ghc
-default-jdk
-swi-prolog
-
-#Mathematik
-#Singular ist nicht in den Packetquellen :-(
-#Aber wir brauchen Abhängigkeiten
-libntl5
-libcdd0d
-normaliz
-surf-alggeo
-python-polybori

contrib/rootfs/offline_repo_packages.manualurls

-#Singular
-#singular
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.2+ds-1+b1_amd64.deb
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.2+ds-1+b1_i386.deb
-#singular-ui
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.2+ds-1+b1_amd64.deb
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.2+ds-1+b1_i386.deb
-#singular-data
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-data_4.0.2+ds-1_all.deb
-#singular-modules
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.2+ds-1+b1_amd64.deb
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.2+ds-1+b1_i386.deb
-#singular-doc
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-doc_4.0.2+ds-1_all.deb
-#libsingular4
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.2+ds-1+b1_amd64.deb
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.2+ds-1+b1_i386.deb
-#libflint-2.5.2
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-3_amd64.deb
-ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-3_i386.deb
-
-#mainline kernel
-http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc2-unstable/linux-image-4.3.0-040300rc2-generic_4.3.0-040300rc2.201509201830_amd64.deb
-http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc2-unstable/linux-image-4.3.0-040300rc2-generic_4.3.0-040300rc2.201509201830_i386.deb