Get rid of coverage page generation (actually useless)

.gitlab-ci.yml

@@ -26,16 +26,4 @@ test:coverage:
   script:
     - cd build
     - make unit_tests
-    - make coverage-report
-
-pages:coverage:
-  stage: deploy
-  dependencies:
-    - test:coverage
-  script:
-    - rm -rf public/
-    - mv build/coverage/ public/
-  artifacts:
-    paths:
-      - public
-    expire_in: 30 days
+    - make coverage