Revert "Added icecream dependency for aidge_onnx"

This reverts commit d9c52ee3

.gitlab/ci/ubuntu_python.gitlab-ci.yml

@@ -79,7 +79,7 @@ coverage:ubuntu_python:
     - python -m pip install numpy coverage requests unittest-xml-reporting 
     - >
       if [[ "$CI_PROJECT_NAME" == "aidge_onnx" ]]; then
-        python -m pip install pytest onnxruntime>=1.18.0 icecream
+        python -m pip install pytest onnxruntime>=1.18.0
       fi
   script:
     - cd ${CI_PROJECT_NAME}