Remove obsolete scripts

scripts/install-system-req.sh

-#!/usr/bin/env bash
-
-# posix compliant sanity check
-if [ -z $BASH ] || [  $BASH = "/bin/sh" ]; then
-    echo "Please use the bash interpreter to run this script"
-    exit 1
-fi
-
-error() {
-      printf '\E[31m'; echo "$@"; printf '\E[0m'
-}
-output() {
-      printf '\E[36m'; echo "$@"; printf '\E[0m'
-}
-
-
-### START
-
-SELF_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-REQUIREMENTS_DIR="$SELF_DIR/../requirements/system"
-APT_REPOS_FILE=$REQUIREMENTS_DIR/"ubuntu/apt-repos.txt"
-APT_PKGS_FILE=$REQUIREMENTS_DIR/"ubuntu/apt-packages.txt"
-
-case `uname -s` in
-    [Ll]inux)
-        command -v lsb_release &>/dev/null || {
-            error "Please install lsb-release."
-            exit 1
-        }
-
-        distro=`lsb_release -cs`
-        case $distro in
-            #Tries to install the same
-            squeeze|wheezy|jessie|maya|lisa|olivia|nadia|natty|oneiric|precise|quantal|raring)
-                output "Installing Debian family requirements"
-
-                # add repositories
-                cat $APT_REPOS_FILE | xargs -n 1 sudo add-apt-repository -y
-                sudo apt-get -yq update
-                sudo DEBIAN_FRONTEND=noninteractive apt-get -yq install gfortran graphviz \
-                            libgraphviz-dev graphviz-dev libatlas-dev libblas-dev
-                # install packages listed in APT_PKGS_FILE
-                cat $APT_PKGS_FILE | xargs sudo DEBIAN_FRONTEND=noninteractive apt-get -yq install
-                ;;
-            *)
-                error "Unsupported distribution - $distro"
-                exit 1
-               ;;
-        esac
-        ;;
-    Darwin)
-
-        if [[ ! -w /usr/local ]]; then
-            cat<<EO
-
-        You need to be able to write to /usr/local for
-        the installation of brew and brew packages.
-
-        Either make sure the group you are in (most likely 'staff')
-        can write to that directory or simply execute the following
-        and re-run the script:
-
-        $ sudo chown -R $USER /usr/local
-EO
-
-            exit 1
-
-        fi
-
-        output "Installing OSX requirements"
-        if [[ -r Brewfile ]]; then
-            brew bundle
-        else
-            error "Brewfile does not exist"
-            exit 1
-        fi
-
-        # paths where brew likes to install python scripts
-        PATH=/usr/local/share/python:/usr/local/bin:$PATH
-
-        command -v pip &>/dev/null || {
-            output "Installing pip"
-            easy_install pip
-        }
-
-        if ! grep -Eq ^1.7 <(virtualenv --version 2>/dev/null); then
-            output "Installing virtualenv >1.7"
-            pip install 'virtualenv>1.7' virtualenvwrapper
-        fi
-
-        command -v coffee &>/dev/null || {
-            output "Installing coffee script"
-            curl --insecure https://npmjs.org/install.sh | sh
-            npm install -g coffee-script
-        }
-        ;;
-    *)
-        error "Unsupported platform"
-        exit 1
-        ;;
-esac