[ci] remove `est` test, not maintable on the long term. Should be the other...

[ci] remove `est` test, not maintable on the long term. Should be the other way around (which is already done more or less)

.gitlab-ci.yml

@@ -29,29 +29,3 @@ variables:
 test:python3.5-strectch:
   image: python:3.5-stretch
   <<: *test_linux_template
-
-
-.build_template: &test_linux_est_template
-  stage: test
-  before_script:
-    - arch
-    - export PYTHONPATH="${PYTHONPATH}:/usr/lib/python3/dist-packages/"
-    - export LD_LIBRARY_PATH=/lib/i386-linux-gnu/:${LD_LIBRARY_PATH}
-    - export LD_LIBRARY_PATH=/lib/x86_64-linux-gnu/:${LD_LIBRARY_PATH}
-    - python --version
-    - python -m pip install pip --upgrade
-    - python -m pip install setuptools --upgrade
-    - python -m pip install numpy
-    - source ./ci/install_scripts.sh
-    - install_est xas_workflow_instanciation_add_on
-    - git submodule init
-    - git submodule update
-
-  script:
-    - python -m pip install -r requirements.txt
-    - python -m pip install . --upgrade
-    - python -m unittest -v representationtest.test.suite
-
-test:python3.7-buster-est-pymca:
-  image: docker-registry.esrf.fr/dau/x11:python3.7_buster
-  <<: *test_linux_est_template