CI: Remove test coverage

.gitlab-ci.yml

@@ -125,13 +125,7 @@ unit-testing:
   script:
     - mix ecto.create
     - mix ecto.migrate
-    - mix test --cover --preload-modules
-  coverage: '/^Line total: ([^ ]*%)$/'
-  artifacts:
-    reports:
-      coverage_report:
-        coverage_format: cobertura
-        path: coverage.xml
+    - mix test --preload-modules
 
 unit-testing-erratic:
   extends: