remove GitLab CI/CD pipeline

We don't need the project README as PDF.

.gitlab-ci.yml

-variables:
-  PANDOC_IMAGE: gitlab.dev.ifs.hsr.ch:45023/ifs/gitlabmarkdowntopdf/pandoc:v1.5
-
-stages:
-- build
-
-before_script:
-
-.job_template: &job_definition
-  image: $PANDOC_IMAGE
-  stage: build
-  variables: &job_common_vars
-    LANG: en_US.utf8
-    MaxDepth: "1"
-    SourceFiles: "NotThere.Md"
-    GIT_CHECKOUT: "false"
-    FileOutputDir: $CI_PROJECT_DIR
-  tags:
-  - docker
-  script:
-  # do not fetch lfs content for docu jobs, change if job requires lfs files
-  - git config --global --remove-section filter.lfs || true
-  - export JOB_DIR=${JOB_DIR:-${CI_JOB_NAME/-Solutions/}}
-  - git config core.hooksPath hooks/
-  # checkout again to execute custom git-hooks
-  - git checkout -f $CI_COMMIT_SHA
-  - git clean -dxf
-  - git archive -o ${FileOutputDir}/${CI_JOB_NAME}.zip HEAD
-  - >
-    for n in $(find $JOB_DIR -maxdepth $MaxDepth "(" -name $SourceFiles -o -iname README.md ")" -print ); do
-    echo $n;
-    fn=$(basename $n);
-    ( cd $(dirname $n) &&
-    pandoc -f markdown+emoji
-    -t latex
-    --pdf-engine=xelatex
-    --template=hsrtemplate
-    --filter=gfm_cleanup.py --filter=gitlab_links.py
-    --filter=plantuml.py --filter=svg_convert.py
-    -Vdate=$(date "+%Y-%m-%d")
-    -o $CI_PROJECT_DIR/${CI_JOB_NAME}.pdf $fn $CI_PROJECT_DIR/pandoc_meta.yaml ) &
-    done;
-    wait;
-  - >
-    for n in $(find $JOB_DIR -maxdepth $MaxDepth "(" -name $SourceFiles -o -iname README.md ")" -exec grep -q "SOLUTION" {} \; -print ); do
-    echo $n;
-    fn=$(basename $n);
-    ( cd $(dirname $n) &&
-    pandoc -f markdown+emoji
-    -t latex
-    --pdf-engine=xelatex
-    --template=hsrtemplate --filter=inline_solutions.py
-    --filter=gfm_cleanup.py --filter=gitlab_links.py
-    --filter=plantuml.py --filter=svg_convert.py
-    -Vdate=$(date "+%Y-%m-%d") -Vsolution=1
-    -o $CI_PROJECT_DIR/${CI_JOB_NAME}-Solutions.pdf $fn $CI_PROJECT_DIR/pandoc_meta.yaml ) &
-    done;
-    wait;
-  artifacts:
-    #expire_in: 3 mos
-    paths:
-    - ${FileOutputDir}/${CI_JOB_NAME}*.pdf
-    - ${FileOutputDir}/${CI_JOB_NAME}.zip
-
-AngProj:
-  <<: *job_definition
-  variables:
-    <<: *job_common_vars
-    JOB_DIR: '.'
-
-Create-Solutions-And-Cleanup-Markdown:
-  image: $PANDOC_IMAGE
-  stage: build
-  variables:
-    LANG: en_US.utf8
-    LANGUAGE: ''
-    LC_ALL: ''
-    GIT_CHECKOUT: "false"
-    JOB_DIR: '.'
-  tags:
-  - docker
-  script:
-  - export JOB_DIR=${JOB_DIR:-$CI_JOB_NAME}
-  # do not fetch lfs content for docu jobs, change if job requires lfs files
-  - git config --global --remove-section filter.lfs || true
-  - git checkout -f $CI_COMMIT_SHA
-  - >
-    for n in $(find . -mindepth 1 "(" -iname README.md ")" -print); do
-    echo $n;
-    fn=$(basename $n);
-    ( cd $(dirname $n) &&
-    cat ${fn} 2>/dev/null | sed -e 's|[„“”]|"|g' -e "s|[’]|'|g" -e "s|[–]|-|g" |
-    pandoc -f markdown+emoji
-    -t markdown+pipe_tables-grid_tables-simple_tables-multiline_tables-header_attributes-fenced_code_attributes-fenced_code_blocks+backtick_code_blocks+emoji
-    --template=MetadataAtEOF
-    --atx-headers --standalone
-    -o ${fn} ) &
-    done;
-  - >
-    for n in $(find . -mindepth 1 "(" -iname README.md ")" -exec grep -q SOLUTION {} \; -print); do
-    echo ${n/.md/.solutions.md};
-    fn=$(basename $n);
-    ( cd $(dirname $n) &&
-    cat ${fn} 2>/dev/null | sed -e 's|[„“”]|"|g' -e "s|[’]|'|g" -e "s|[–]|-|g" |
-    pandoc -f markdown+emoji
-    -t markdown+pipe_tables-grid_tables-simple_tables-multiline_tables-header_attributes-fenced_code_attributes-fenced_code_blocks+backtick_code_blocks+emoji
-    --template=MetadataAtEOF
-    --filter=inline_solutions.py
-    --atx-headers --standalone
-    -o ${fn/.md/.solutions.md} ) &
-    done;
-    wait;
-  artifacts:
-    expire_in: 1 day
-    paths:
-    - ${JOB_DIR:-$CI_JOB_NAME}/*.solutions.md
-    - ${JOB_DIR:-$CI_JOB_NAME}/*.md