remove old deployment scripts

.ci/build_indices.sh

-#!/bin/bash
-
-DIRECTORY=build
-
-# Install lunr to build the index
-npm install lunr@2.3.8
-
-# Go to the directory...
-cd $DIRECTORY
-
-printf "Found the following build targets inside: \n$(ls -d */)\n\n"
-
-# ...and loop through all the build targets
-for branch in $(ls -d */); do
-    echo "Entering: $branch";
-
-    cd "$branch";
-
-    echo "Generating the index..."    
-    cat documents.js | node $CI_PROJECT_DIR/build_index.js > index.js
-    rm documents.js build_index.js
-
-    echo "...should be completed. First 50 characters of the index: "
-    cat index.js | head -c50
-    echo ""
-
-    cd ..
-    
-done
-
-rm $CI_PROJECT_DIR/build_index.js

.ci/deploy.sh

-mkdir -p build
-artefact="latest"
-
-# loop through all the branches
-for branch in $(git for-each-ref --format='%(refname:strip=3)' refs/remotes); do
-    echo $branch;
-    if [[ $branch == "master" ]]; then
-        artefact="stable";
-    elif [[ $branch == "develop" ]]; then
-        artefact="latest";
-    else
-        artefact="unstable";
-    fi
-    echo $artefact;
-    git checkout -f $branch
-    git reset --hard $branch
-    git pull
-
-    # Generate the config dynamically
-    echo 'url: "https://r3.pages.uni.lu"' > _config_url.yml
-
-    # build the website
-    bundle install
-    bundle exec jekyll build --config "_config.yml,_config_url.yml" --baseurl="howto-cards/$artefact" -d "build/$artefact"
-
-    if [[ $branch == "master" ]]; then
-        # set the 404
-        cp howto-cards/$artefact/404.html build/404.html
-    fi
-done
-
-# checkout the current branch
-echo $CI_COMMIT_REF_NAME
-git checkout -f $CI_COMMIT_REF_NAME
-git reset --hard origin/$CI_COMMIT_REF_NAME
-
-# set the auto redirection
-cp .ci/.autoRedirect build/index.html