remove custom layers installation from coverage test

Author: yarden-sony

.github/workflows/run_tests_suite_coverage.yml

@@ -48,7 +48,7 @@ jobs:
           source torch_env/bin/activate
           python -m pip install --upgrade pip
           pip install -r requirements.txt
-          pip install torch==2.5.* torchvision onnx onnxruntime "onnxruntime-extensions<0.14" sony-custom-layers coverage pytest pytest-mock
+          pip install torch==2.5.* torchvision onnx onnxruntime "onnxruntime-extensions<0.14" coverage pytest pytest-mock
 
       - name: Run PyTorch tests (unittest)
         run: |
@@ -65,7 +65,7 @@ jobs:
           python -m venv tf_env
           source tf_env/bin/activate
           python -m pip install --upgrade pip
-          pip install -r requirements.txt tensorflow==2.13.* sony-custom-layers coverage pytest pytest-mock
+          pip install -r requirements.txt tensorflow==2.13.* coverage pytest pytest-mock
 
       - name: Run TensorFlow tests (unittest)
         run: |